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13 core topics, 78 verified formulas, 39 exam traps, and shortcut methods for TSD, Time & Work, Percentages, Profit & Loss, Mixtures & Averages.
Search, copy, and solve verified practice drills across high-frequency Quant formulas.
78 formulas, 39 exam traps with fixes, and real CAT PYQ deep-links in a high-res printable booklet.
Time to meet = \frac{\text{Initial Distance}}{S_{rel}}. Crucial for trains crossing platforms, boats and streams, and circular track overtakes.
Applies strictly when equal distances are covered at speeds S1 and S2. If distance is not equal, use Total Distance / Total Time.
Efficiency is inversely proportional to time taken. Use LCM of individual days as total work units.
Use + for percentage increase and - for percentage decrease. Useful for successive discounts and compound growth.
The ratio of quantity Q1 to Q2 is the difference between individual concentrations and the mean mixture concentration Cm.
Official Benchmark & Strategic Decision Snapshot
Use Harmonic Mean strictly when distances are equal. For circular tracks, meetings at starting point depend on LCM of individual lap times.
Convert days into efficiency units via LCM. Negative work (pipes emptying) must be subtracted from net rate.
Multiplier method (e.g., 1.15 for +15%) speeds successive compounding and eliminates multi-step calculations.
Arithmetic is the single largest component of CAT QA, representing 8 to 9 out of 22 questions. Achieving high accuracy in Arithmetic alone guarantees clearing sectional cutoffs for top IIMs.
The complete 20-page Arithmetic Formula & Trap Book PDF can be previewed directly on ThinkCAT or downloaded freely without requiring payment or phone numbers.
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