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CAT 2021 Slot 1 DILR Questions & Answer Key

Data Interpretation & Logical Reasoning questions from CAT 2021 Slot 1 (IIM Ahmedabad, Morning Session (8:30 AM – 10:30 AM IST); 20 in the exam) with the answer key and step-by-step solutions

Executive Answer & Section Summary

CAT 2021 Slot 1 Data Interpretation & Logical Reasoning (DILR) was conducted by IIM Ahmedabad during the Morning Session (8:30 AM – 10:30 AM IST). The section comprised 20 questions administered under a strict 40-minute sectional countdown. Sectional marking adheres to standard CAT conventions: +3 marks for every correct answer, -1 mark penalty for incorrect MCQs, and zero penalty for non-MCQ TITA questions. Securing a 99.0th percentile in this section required approximately 23–26 marks (~8 net correct). The question distribution featured 4 to 5 multi-condition caselets covering matrix arrangements, tabular reasoning, games-tournaments, and data graphs under strict 40-minute clocks. All questions in this archive are sourced from official candidate response sheets, cross-verified with the convenor master key, and solved with step-by-step logic proofs on ThinkCAT.

20 Total Questions
MCQ: 15 (+3 / -1)
TITA: 5 (0 Negative Penalty)
Attempt DILR Section in Timed 40-Min ModeSolve Questions on this Page

CAT Direct Answer Fact Sheet & Citation Summary

Structured Knowledge Graph • Verified Academic Analysis
Updated for CAT 2026: 2 November 2026
Verified Questions
20 Qs
15 MCQ + 5 TITA
99%ile Score Benchmark
23–26 Marks (out of 60 in DILR, ~8 net correct questions)
Scoring Scheme
+3 / -1 / 0
Zero penalty on TITA
Testing Interface
TCS iON CBT
On-Screen Calc Enabled
IIM Exam Strategy & Score Maximization Directives
1Invest the initial 3–4 minutes scanning all 4 caselet sets to evaluate data density and rule clarity before committing to solving.
2Fill definitive negative conditions (e.g. "P cannot sit in Slot 3") into a 2D matrix immediately to narrow deductive branches.
3If a set takes more than 12 minutes without yielding 2 confirmed question answers, switch immediately to the next caselet.
Share this dataset with study groups:
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Editorial & Academic Authority: Verified by ThinkCAT Academic & Editorial Council.
Citation Format: ThinkCAT Academic Archive (thinkcat.in)

CAT 2021 Slot 1 DILR Answer Key

Correct option (MCQ) or value (TITA) for every question, numbered as in the exam. Full solutions are in the questions below.

DILR

  1. Q1D
  2. Q2C
  3. Q31
  4. Q4D
  5. Q5C
  6. Q6C
  7. Q7D
  8. Q86
  9. Q9C
  10. Q108
  11. Q11C
  12. Q12A
  13. Q13B
  14. Q14A
  15. Q15B
  16. Q16A
  17. Q17C
  18. Q18A
  19. Q193
  20. Q204
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Official Exam Questions & Explanations (20 of 20)

Sorted in official convenor sequence

Solve this section set by set, with solutions

Question 1 of 20
CAT 2021 Slot 1DILRData Interpretation • Bar GraphsEasy
Caselet / Problem Set Context•~92 words
The horizontal bars in the above diagram represent 2020 aggregate sales (in million ₹) of accompany for the different subcategories of its products. The top four product subcategories (Bookcases, Chairs, Furnishings, Tables) belong to furniture product category; the bottom four product subcategories (Accessories, Copiers, Machines, Phones) belong to the technology product category while all other product subcategories belong to the office supply product category. For each of the product subcategories, there is a vertical line indicating the sales of the corresponding subcategory in 2019.
Official Reference Chart - CAT 2021 Slot 1 Official Reference Chart - CAT 2021 Slot 1
The total sales (in million ₹) in 2019 from products in office supplies category is closest to
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Question 2 of 20
CAT 2021 Slot 1DILRData Interpretation • Bar GraphsEasy
Caselet / Problem Set Context•~92 words
The horizontal bars in the above diagram represent 2020 aggregate sales (in million ₹) of accompany for the different subcategories of its products. The top four product subcategories (Bookcases, Chairs, Furnishings, Tables) belong to furniture product category; the bottom four product subcategories (Accessories, Copiers, Machines, Phones) belong to the technology product category while all other product subcategories belong to the office supply product category. For each of the product subcategories, there is a vertical line indicating the sales of the corresponding subcategory in 2019.
Official Reference Chart - CAT 2021 Slot 1 Official Reference Chart - CAT 2021 Slot 1
The percentage increase in sales in Furniture category from 2019 to 2020 is closest to
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Question 3 of 20
CAT 2021 Slot 1DILRData Interpretation • Bar GraphsEasy
Caselet / Problem Set Context•~92 words
The horizontal bars in the above diagram represent 2020 aggregate sales (in million ₹) of accompany for the different subcategories of its products. The top four product subcategories (Bookcases, Chairs, Furnishings, Tables) belong to furniture product category; the bottom four product subcategories (Accessories, Copiers, Machines, Phones) belong to the technology product category while all other product subcategories belong to the office supply product category. For each of the product subcategories, there is a vertical line indicating the sales of the corresponding subcategory in 2019.
Official Reference Chart - CAT 2021 Slot 1 Official Reference Chart - CAT 2021 Slot 1
How many subcategories had sales of ₹ 4 million or more in 2019 and registered an increase in sales in excess of 25% in 2020?
TITA Answer:
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Question 4 of 20
CAT 2021 Slot 1DILRData Interpretation • Bar GraphsEasy
Caselet / Problem Set Context•~92 words
The horizontal bars in the above diagram represent 2020 aggregate sales (in million ₹) of accompany for the different subcategories of its products. The top four product subcategories (Bookcases, Chairs, Furnishings, Tables) belong to furniture product category; the bottom four product subcategories (Accessories, Copiers, Machines, Phones) belong to the technology product category while all other product subcategories belong to the office supply product category. For each of the product subcategories, there is a vertical line indicating the sales of the corresponding subcategory in 2019.
Official Reference Chart - CAT 2021 Slot 1 Official Reference Chart - CAT 2021 Slot 1
The improvement index for a category is the maximum percentage increase in sales from 2019 to 2020 among any of its subcategories. The correct order of categories in increasing order of this improvement index is
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Question 5 of 20
CAT 2021 Slot 1DILRLogical Reasoning • ArrangementsHard
Caselet / Problem Set Context•~348 words
Ganga, Kaveri, and Narmada are three women who buy four raw materials (Mango, Apple, Banana and Milk) and sell five finished products (Mango smoothie, Apple smoothie, Banana smoothie, Mixed fruit smoothie and Fruit salad). Table-1 gives information about the raw materials required to produce the five finished products. One unit of a finished product requires one unit of each of the raw materials mentioned in the second column of the table.
Finished productRaw materials required
Mango smoothieMango, Milk
Apple smoothieApple, Milk
Banana smoothieBanana, Milk
Mixed fruit smoothieMango, Apple, Banana, Milk
Fruit saladMango, Apple, Banana
One unit of milk, mango, apple, and banana cost ₹5, ₹3, ₹2, and ₹1 respectively. Each unit of a finished product is sold for a profit equal to two times the number of raw materials used to make that product. For example, apple smoothie is made with two raw materials (apple and milk) and will be sold for a profit of ₹4 per unit. Leftover raw materials are sold during the last business hour of the day for a loss of ₹1 per unit.
The amount, in rupees, received from sales (revenue) for each woman in each of the four business hours of the day is given in Table-2.
Business HourGangaKaveriNarmada
Hour 1231931
Hour 2212221
Hour 3293023
Hour 4 (last hour)302722
The following additional facts are known.
No one except possibly Ganga sold any Mango smoothie.
Each woman sold either zero or one unit of any single finished product in any hour.
Each woman had exactly one unit each of two different raw materials as leftovers.
No one had any banana leftover.
What BEST can be concluded about the number of units of fruit salad sold in the first hour?
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Question 6 of 20
CAT 2021 Slot 1DILRLogical Reasoning • ArrangementsHard
Caselet / Problem Set Context•~348 words
Ganga, Kaveri, and Narmada are three women who buy four raw materials (Mango, Apple, Banana and Milk) and sell five finished products (Mango smoothie, Apple smoothie, Banana smoothie, Mixed fruit smoothie and Fruit salad). Table-1 gives information about the raw materials required to produce the five finished products. One unit of a finished product requires one unit of each of the raw materials mentioned in the second column of the table.
Finished productRaw materials required
Mango smoothieMango, Milk
Apple smoothieApple, Milk
Banana smoothieBanana, Milk
Mixed fruit smoothieMango, Apple, Banana, Milk
Fruit saladMango, Apple, Banana
One unit of milk, mango, apple, and banana cost ₹5, ₹3, ₹2, and ₹1 respectively. Each unit of a finished product is sold for a profit equal to two times the number of raw materials used to make that product. For example, apple smoothie is made with two raw materials (apple and milk) and will be sold for a profit of ₹4 per unit. Leftover raw materials are sold during the last business hour of the day for a loss of ₹1 per unit.
The amount, in rupees, received from sales (revenue) for each woman in each of the four business hours of the day is given in Table-2.
Business HourGangaKaveriNarmada
Hour 1231931
Hour 2212221
Hour 3293023
Hour 4 (last hour)302722
The following additional facts are known.
No one except possibly Ganga sold any Mango smoothie.
Each woman sold either zero or one unit of any single finished product in any hour.
Each woman had exactly one unit each of two different raw materials as leftovers.
No one had any banana leftover.
Which of the following is NECESSARILY true?
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Question 7 of 20
CAT 2021 Slot 1DILRData Interpretation • TablesHard
Caselet / Problem Set Context•~348 words
Ganga, Kaveri, and Narmada are three women who buy four raw materials (Mango, Apple, Banana and Milk) and sell five finished products (Mango smoothie, Apple smoothie, Banana smoothie, Mixed fruit smoothie and Fruit salad). Table-1 gives information about the raw materials required to produce the five finished products. One unit of a finished product requires one unit of each of the raw materials mentioned in the second column of the table.
Finished productRaw materials required
Mango smoothieMango, Milk
Apple smoothieApple, Milk
Banana smoothieBanana, Milk
Mixed fruit smoothieMango, Apple, Banana, Milk
Fruit saladMango, Apple, Banana
One unit of milk, mango, apple, and banana cost ₹5, ₹3, ₹2, and ₹1 respectively. Each unit of a finished product is sold for a profit equal to two times the number of raw materials used to make that product. For example, apple smoothie is made with two raw materials (apple and milk) and will be sold for a profit of ₹4 per unit. Leftover raw materials are sold during the last business hour of the day for a loss of ₹1 per unit.
The amount, in rupees, received from sales (revenue) for each woman in each of the four business hours of the day is given in Table-2.
Business HourGangaKaveriNarmada
Hour 1231931
Hour 2212221
Hour 3293023
Hour 4 (last hour)302722
The following additional facts are known.
No one except possibly Ganga sold any Mango smoothie.
Each woman sold either zero or one unit of any single finished product in any hour.
Each woman had exactly one unit each of two different raw materials as leftovers.
No one had any banana leftover.
What BEST can be concluded about the total number of units of milk the three women had in the beginning?
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Question 8 of 20
CAT 2021 Slot 1DILRLogical Reasoning • ArrangementsHard
Caselet / Problem Set Context•~348 words
Ganga, Kaveri, and Narmada are three women who buy four raw materials (Mango, Apple, Banana and Milk) and sell five finished products (Mango smoothie, Apple smoothie, Banana smoothie, Mixed fruit smoothie and Fruit salad). Table-1 gives information about the raw materials required to produce the five finished products. One unit of a finished product requires one unit of each of the raw materials mentioned in the second column of the table.
Finished productRaw materials required
Mango smoothieMango, Milk
Apple smoothieApple, Milk
Banana smoothieBanana, Milk
Mixed fruit smoothieMango, Apple, Banana, Milk
Fruit saladMango, Apple, Banana
One unit of milk, mango, apple, and banana cost ₹5, ₹3, ₹2, and ₹1 respectively. Each unit of a finished product is sold for a profit equal to two times the number of raw materials used to make that product. For example, apple smoothie is made with two raw materials (apple and milk) and will be sold for a profit of ₹4 per unit. Leftover raw materials are sold during the last business hour of the day for a loss of ₹1 per unit.
The amount, in rupees, received from sales (revenue) for each woman in each of the four business hours of the day is given in Table-2.
Business HourGangaKaveriNarmada
Hour 1231931
Hour 2212221
Hour 3293023
Hour 4 (last hour)302722
The following additional facts are known.
No one except possibly Ganga sold any Mango smoothie.
Each woman sold either zero or one unit of any single finished product in any hour.
Each woman had exactly one unit each of two different raw materials as leftovers.
No one had any banana leftover.
If it is known that three leftover units of mangoes were sold during the last business hour of the day, how many apple smoothies were sold during the day?
TITA Answer:
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Question 9 of 20
CAT 2021 Slot 1DILRLogical Reasoning • ArrangementsModerate
Caselet / Problem Set Context•~358 words
A journal plans to publish 18 research papers, written by eight authors (A, B, C, D, E, F, G, and H) in four issues of the journal scheduled in January, April, July and October. Each of the research papers was written by exactly one of the eight authors. Five papers were scheduled in each of the first two issues, while four were scheduled in each of the last two issues. Every author wrote at least one paper and at most three papers. The total number of papers written by A, D, G and H was double the total number of papers written by the other four authors.
Four of the authors were from India and two each were from Japan and China. Each author belonged to exactly one of the three areas Manufacturing, Automation and Logistics. Four of the authors were from the Logistics area and two from the Automation area. As per the journal policy, none of the authors could have more than one paper in any issue of the journal.
The following facts are also known.
F, an Indian author from the Logistics area, wrote only one paper. It was scheduled in the October issue.
A was from the Automation area and did not have a paper scheduled in the October issue.
None of the Indian authors were from the Manufacturing area and none of the Japanese or Chinese authors were from the Automation area.
A and H were from different countries, but had their papers scheduled in exactly the same issues.
C and E, both Chinese authors from different areas, had the same number of papers scheduled. Further, E had papers scheduled in consecutive issues of the journal but C did not.
B, from the Logistics area, had a paper scheduled in the April issue of the journal.
B and G belonged to the same country. None of their papers were scheduled in the same issue of the journal.
D, a Japanese author from the Manufacturing area, did not have a paper scheduled in the July issue.
C and H belonged to different areas.
What is the correct sequence of number of papers written by B, C, E and G, respectively?
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Question 10 of 20
CAT 2021 Slot 1DILRLogical Reasoning • ArrangementsModerate
Caselet / Problem Set Context•~358 words
A journal plans to publish 18 research papers, written by eight authors (A, B, C, D, E, F, G, and H) in four issues of the journal scheduled in January, April, July and October. Each of the research papers was written by exactly one of the eight authors. Five papers were scheduled in each of the first two issues, while four were scheduled in each of the last two issues. Every author wrote at least one paper and at most three papers. The total number of papers written by A, D, G and H was double the total number of papers written by the other four authors.
Four of the authors were from India and two each were from Japan and China. Each author belonged to exactly one of the three areas Manufacturing, Automation and Logistics. Four of the authors were from the Logistics area and two from the Automation area. As per the journal policy, none of the authors could have more than one paper in any issue of the journal.
The following facts are also known.
F, an Indian author from the Logistics area, wrote only one paper. It was scheduled in the October issue.
A was from the Automation area and did not have a paper scheduled in the October issue.
None of the Indian authors were from the Manufacturing area and none of the Japanese or Chinese authors were from the Automation area.
A and H were from different countries, but had their papers scheduled in exactly the same issues.
C and E, both Chinese authors from different areas, had the same number of papers scheduled. Further, E had papers scheduled in consecutive issues of the journal but C did not.
B, from the Logistics area, had a paper scheduled in the April issue of the journal.
B and G belonged to the same country. None of their papers were scheduled in the same issue of the journal.
D, a Japanese author from the Manufacturing area, did not have a paper scheduled in the July issue.
C and H belonged to different areas.
How many papers were written by Indian authors?
TITA Answer:
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Question 11 of 20
CAT 2021 Slot 1DILRLogical Reasoning • ArrangementsModerate
Caselet / Problem Set Context•~358 words
A journal plans to publish 18 research papers, written by eight authors (A, B, C, D, E, F, G, and H) in four issues of the journal scheduled in January, April, July and October. Each of the research papers was written by exactly one of the eight authors. Five papers were scheduled in each of the first two issues, while four were scheduled in each of the last two issues. Every author wrote at least one paper and at most three papers. The total number of papers written by A, D, G and H was double the total number of papers written by the other four authors.
Four of the authors were from India and two each were from Japan and China. Each author belonged to exactly one of the three areas Manufacturing, Automation and Logistics. Four of the authors were from the Logistics area and two from the Automation area. As per the journal policy, none of the authors could have more than one paper in any issue of the journal.
The following facts are also known.
F, an Indian author from the Logistics area, wrote only one paper. It was scheduled in the October issue.
A was from the Automation area and did not have a paper scheduled in the October issue.
None of the Indian authors were from the Manufacturing area and none of the Japanese or Chinese authors were from the Automation area.
A and H were from different countries, but had their papers scheduled in exactly the same issues.
C and E, both Chinese authors from different areas, had the same number of papers scheduled. Further, E had papers scheduled in consecutive issues of the journal but C did not.
B, from the Logistics area, had a paper scheduled in the April issue of the journal.
B and G belonged to the same country. None of their papers were scheduled in the same issue of the journal.
D, a Japanese author from the Manufacturing area, did not have a paper scheduled in the July issue.
C and H belonged to different areas.
Which of the following statement(s) MUST be true?
Statement A: Every issue had at least one paper by author(s) from each country. Statement B: Every issue had at most two papers by author(s) from each area.
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Question 12 of 20
CAT 2021 Slot 1DILRLogical Reasoning • ArrangementsModerate
Caselet / Problem Set Context•~358 words
A journal plans to publish 18 research papers, written by eight authors (A, B, C, D, E, F, G, and H) in four issues of the journal scheduled in January, April, July and October. Each of the research papers was written by exactly one of the eight authors. Five papers were scheduled in each of the first two issues, while four were scheduled in each of the last two issues. Every author wrote at least one paper and at most three papers. The total number of papers written by A, D, G and H was double the total number of papers written by the other four authors.
Four of the authors were from India and two each were from Japan and China. Each author belonged to exactly one of the three areas Manufacturing, Automation and Logistics. Four of the authors were from the Logistics area and two from the Automation area. As per the journal policy, none of the authors could have more than one paper in any issue of the journal.
The following facts are also known.
F, an Indian author from the Logistics area, wrote only one paper. It was scheduled in the October issue.
A was from the Automation area and did not have a paper scheduled in the October issue.
None of the Indian authors were from the Manufacturing area and none of the Japanese or Chinese authors were from the Automation area.
A and H were from different countries, but had their papers scheduled in exactly the same issues.
C and E, both Chinese authors from different areas, had the same number of papers scheduled. Further, E had papers scheduled in consecutive issues of the journal but C did not.
B, from the Logistics area, had a paper scheduled in the April issue of the journal.
B and G belonged to the same country. None of their papers were scheduled in the same issue of the journal.
D, a Japanese author from the Manufacturing area, did not have a paper scheduled in the July issue.
C and H belonged to different areas.
Which of the following statements is FALSE?
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Question 13 of 20
CAT 2021 Slot 1DILRLogical Reasoning • ArrangementsModerate
Caselet / Problem Set Context•~358 words
A journal plans to publish 18 research papers, written by eight authors (A, B, C, D, E, F, G, and H) in four issues of the journal scheduled in January, April, July and October. Each of the research papers was written by exactly one of the eight authors. Five papers were scheduled in each of the first two issues, while four were scheduled in each of the last two issues. Every author wrote at least one paper and at most three papers. The total number of papers written by A, D, G and H was double the total number of papers written by the other four authors.
Four of the authors were from India and two each were from Japan and China. Each author belonged to exactly one of the three areas Manufacturing, Automation and Logistics. Four of the authors were from the Logistics area and two from the Automation area. As per the journal policy, none of the authors could have more than one paper in any issue of the journal.
The following facts are also known.
F, an Indian author from the Logistics area, wrote only one paper. It was scheduled in the October issue.
A was from the Automation area and did not have a paper scheduled in the October issue.
None of the Indian authors were from the Manufacturing area and none of the Japanese or Chinese authors were from the Automation area.
A and H were from different countries, but had their papers scheduled in exactly the same issues.
C and E, both Chinese authors from different areas, had the same number of papers scheduled. Further, E had papers scheduled in consecutive issues of the journal but C did not.
B, from the Logistics area, had a paper scheduled in the April issue of the journal.
B and G belonged to the same country. None of their papers were scheduled in the same issue of the journal.
D, a Japanese author from the Manufacturing area, did not have a paper scheduled in the July issue.
C and H belonged to different areas.
Which of the following statements is FALSE?
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Question 14 of 20
CAT 2021 Slot 1DILRLogical Reasoning • ArrangementsModerate
Caselet / Problem Set Context•~358 words
A journal plans to publish 18 research papers, written by eight authors (A, B, C, D, E, F, G, and H) in four issues of the journal scheduled in January, April, July and October. Each of the research papers was written by exactly one of the eight authors. Five papers were scheduled in each of the first two issues, while four were scheduled in each of the last two issues. Every author wrote at least one paper and at most three papers. The total number of papers written by A, D, G and H was double the total number of papers written by the other four authors.
Four of the authors were from India and two each were from Japan and China. Each author belonged to exactly one of the three areas Manufacturing, Automation and Logistics. Four of the authors were from the Logistics area and two from the Automation area. As per the journal policy, none of the authors could have more than one paper in any issue of the journal.
The following facts are also known.
F, an Indian author from the Logistics area, wrote only one paper. It was scheduled in the October issue.
A was from the Automation area and did not have a paper scheduled in the October issue.
None of the Indian authors were from the Manufacturing area and none of the Japanese or Chinese authors were from the Automation area.
A and H were from different countries, but had their papers scheduled in exactly the same issues.
C and E, both Chinese authors from different areas, had the same number of papers scheduled. Further, E had papers scheduled in consecutive issues of the journal but C did not.
B, from the Logistics area, had a paper scheduled in the April issue of the journal.
B and G belonged to the same country. None of their papers were scheduled in the same issue of the journal.
D, a Japanese author from the Manufacturing area, did not have a paper scheduled in the July issue.
C and H belonged to different areas.
Which of the following is the correct sequence of number of papers by authors from Automation, Manufacturing and Logistics areas, respectively?
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Question 15 of 20
CAT 2021 Slot 1DILRLogical Reasoning • ArrangementsModerate
Caselet / Problem Set Context•~227 words
Amudha, Bharatan, Chandran, Dhinesh, Ezhil, Fani and Gowtham are seven people in a town. Any pair of them could either be strangers, acquaintances, or friends. All relationships are mutual. For example, if Amudha is a friend of Bharatan, then Bharatan is also a friend of Amudha. Similarly, if Amudha is a stranger to Bharatan, then Bharatan is also a stranger to Amudha.
Partial information about the number of friends, acquaintances, and strangers of each of these people among them is given in the table below.
No. of FriendsNo. of AcquaintancesNo. of Strangers
Amudha14
Bharatan
Chandran1
Dhinesh2
Ezhil1
Fani1
Gowtham32
The following additional facts are also known.
1
Amudha, Bharatan, and Chandran are mutual strangers.
2
Amudha, Dhinesh, and Fani are Ezhil's friends.
3
Chandran and Gowtham are friends.
4
Every friend of Amudha is an acquaintance of Bharatan, and every acquaintance of Bharatan is a friend of Amudha.
5
Every friend of Bharatan is an acquaintance of Amudha, and every acquaintance of Amudha is a friend of Bharatan.
Who are Gowtham's acquaintances?
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Question 16 of 20
CAT 2021 Slot 1DILRLogical Reasoning • ArrangementsModerate
Caselet / Problem Set Context•~227 words
Amudha, Bharatan, Chandran, Dhinesh, Ezhil, Fani and Gowtham are seven people in a town. Any pair of them could either be strangers, acquaintances, or friends. All relationships are mutual. For example, if Amudha is a friend of Bharatan, then Bharatan is also a friend of Amudha. Similarly, if Amudha is a stranger to Bharatan, then Bharatan is also a stranger to Amudha.
Partial information about the number of friends, acquaintances, and strangers of each of these people among them is given in the table below.
No. of FriendsNo. of AcquaintancesNo. of Strangers
Amudha14
Bharatan
Chandran1
Dhinesh2
Ezhil1
Fani1
Gowtham32
The following additional facts are also known.
1
Amudha, Bharatan, and Chandran are mutual strangers.
2
Amudha, Dhinesh, and Fani are Ezhil's friends.
3
Chandran and Gowtham are friends.
4
Every friend of Amudha is an acquaintance of Bharatan, and every acquaintance of Bharatan is a friend of Amudha.
5
Every friend of Bharatan is an acquaintance of Amudha, and every acquaintance of Amudha is a friend of Bharatan.
Which of these pairs share the same type of relationship?
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Question 17 of 20
CAT 2021 Slot 1DILRLogical Reasoning • ArrangementsModerate
Caselet / Problem Set Context•~227 words
Amudha, Bharatan, Chandran, Dhinesh, Ezhil, Fani and Gowtham are seven people in a town. Any pair of them could either be strangers, acquaintances, or friends. All relationships are mutual. For example, if Amudha is a friend of Bharatan, then Bharatan is also a friend of Amudha. Similarly, if Amudha is a stranger to Bharatan, then Bharatan is also a stranger to Amudha.
Partial information about the number of friends, acquaintances, and strangers of each of these people among them is given in the table below.
No. of FriendsNo. of AcquaintancesNo. of Strangers
Amudha14
Bharatan
Chandran1
Dhinesh2
Ezhil1
Fani1
Gowtham32
The following additional facts are also known.
1
Amudha, Bharatan, and Chandran are mutual strangers.
2
Amudha, Dhinesh, and Fani are Ezhil's friends.
3
Chandran and Gowtham are friends.
4
Every friend of Amudha is an acquaintance of Bharatan, and every acquaintance of Bharatan is a friend of Amudha.
5
Every friend of Bharatan is an acquaintance of Amudha, and every acquaintance of Amudha is a friend of Bharatan.
Who is an acquaintance of Amudha?
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Question 18 of 20
CAT 2021 Slot 1DILRLogical Reasoning • ArrangementsModerate
Caselet / Problem Set Context•~227 words
Amudha, Bharatan, Chandran, Dhinesh, Ezhil, Fani and Gowtham are seven people in a town. Any pair of them could either be strangers, acquaintances, or friends. All relationships are mutual. For example, if Amudha is a friend of Bharatan, then Bharatan is also a friend of Amudha. Similarly, if Amudha is a stranger to Bharatan, then Bharatan is also a stranger to Amudha.
Partial information about the number of friends, acquaintances, and strangers of each of these people among them is given in the table below.
No. of FriendsNo. of AcquaintancesNo. of Strangers
Amudha14
Bharatan
Chandran1
Dhinesh2
Ezhil1
Fani1
Gowtham32
The following additional facts are also known.
1
Amudha, Bharatan, and Chandran are mutual strangers.
2
Amudha, Dhinesh, and Fani are Ezhil's friends.
3
Chandran and Gowtham are friends.
4
Every friend of Amudha is an acquaintance of Bharatan, and every acquaintance of Bharatan is a friend of Amudha.
5
Every friend of Bharatan is an acquaintance of Amudha, and every acquaintance of Amudha is a friend of Bharatan.
Who is an acquaintance of Chandran?
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Question 19 of 20
CAT 2021 Slot 1DILRLogical Reasoning • ArrangementsModerate
Caselet / Problem Set Context•~227 words
Amudha, Bharatan, Chandran, Dhinesh, Ezhil, Fani and Gowtham are seven people in a town. Any pair of them could either be strangers, acquaintances, or friends. All relationships are mutual. For example, if Amudha is a friend of Bharatan, then Bharatan is also a friend of Amudha. Similarly, if Amudha is a stranger to Bharatan, then Bharatan is also a stranger to Amudha.
Partial information about the number of friends, acquaintances, and strangers of each of these people among them is given in the table below.
No. of FriendsNo. of AcquaintancesNo. of Strangers
Amudha14
Bharatan
Chandran1
Dhinesh2
Ezhil1
Fani1
Gowtham32
The following additional facts are also known.
1
Amudha, Bharatan, and Chandran are mutual strangers.
2
Amudha, Dhinesh, and Fani are Ezhil's friends.
3
Chandran and Gowtham are friends.
4
Every friend of Amudha is an acquaintance of Bharatan, and every acquaintance of Bharatan is a friend of Amudha.
5
Every friend of Bharatan is an acquaintance of Amudha, and every acquaintance of Amudha is a friend of Bharatan.
How many friends does Ezhil have?
TITA Answer:
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Question 20 of 20
CAT 2021 Slot 1DILRLogical Reasoning • ArrangementsModerate
Caselet / Problem Set Context•~227 words
Amudha, Bharatan, Chandran, Dhinesh, Ezhil, Fani and Gowtham are seven people in a town. Any pair of them could either be strangers, acquaintances, or friends. All relationships are mutual. For example, if Amudha is a friend of Bharatan, then Bharatan is also a friend of Amudha. Similarly, if Amudha is a stranger to Bharatan, then Bharatan is also a stranger to Amudha.
Partial information about the number of friends, acquaintances, and strangers of each of these people among them is given in the table below.
No. of FriendsNo. of AcquaintancesNo. of Strangers
Amudha14
Bharatan
Chandran1
Dhinesh2
Ezhil1
Fani1
Gowtham32
The following additional facts are also known.
1
Amudha, Bharatan, and Chandran are mutual strangers.
2
Amudha, Dhinesh, and Fani are Ezhil's friends.
3
Chandran and Gowtham are friends.
4
Every friend of Amudha is an acquaintance of Bharatan, and every acquaintance of Bharatan is a friend of Amudha.
5
Every friend of Bharatan is an acquaintance of Amudha, and every acquaintance of Amudha is a friend of Bharatan.
How many people are either a friend or a friend-of-a-friend of Ezhil?
TITA Answer:
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Frequently Asked Questions about CAT 2021 Slot 1 DILR Questions & Answer Key

How many questions were asked in CAT 2021 Slot 1 DILR?

CAT 2021 Slot 1 DILR contained 20 questions convened by IIM Ahmedabad. Marking was +3 marks for correct answers, -1 for incorrect MCQs, and zero penalty for TITA questions.

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Achieving a 99.0th percentile in DILR required approximately 23–26 marks (~8 net correct), reflecting the moderate difficulty (inaugural 66-question cat blueprint).

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