Aptitude & Reasoning Shortcuts — 51 Time-Saving Methods (PDF)

Not another question bank. You can find ten thousand free aptitude questions in ten seconds — what you cannot easily find is the set of methods that turn a ninety-second question into a fifteen-second one.

In a placement aptitude section you get roughly 45 to 60 seconds per question. At that pace, the difference between clearing the cutoff and missing it is rarely whether you know the concept. It is whether you reached for the long method or the short one.

51 methods across 9 sections

• Calculation Speed — multiply by 11, square anything ending in 5, numbers near 100, x5, x25, x125, x9, x99
• Percentages, Profit and Loss — the fraction table, successive changes, the same-selling-price trap, CI minus SI
• Averages, Ratio and Mixtures — alligation in one line instead of two equations
• Time, Speed and Distance — unit conversion, average speed, trains, relative speed
• Time and Work — the together formula, the efficiency method, and the LCM method that beats both
• Number System — divisibility, unit digits of large powers, counting factors, HCF and LCM
• Counting and Probability — nCr shortcuts, repeated letters, circular arrangements, "at least one"
• Logical Reasoning — series, blood relations, directions, the clock angle formula, calendars, syllogisms
• Data Interpretation and Exam Strategy — approximating, the two-pass method, and the expected-value maths on negative marking

Every worked example was computed and checked, not typed from memory. 94 separate numeric claims, each one verified.

Plus the eight methods to memorise first if you only have one evening, a four-week practice plan, and the three habits that matter more than any shortcut.

Format: PDF, 9 pages, A4. Reads well on phone, laptop and print.

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