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🔢 QA — Quantitative AbilityThe Indian Institutes of Management

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9 chapters in syllabus order, in English and Hindi.

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  • 9chapters
  • 72quiz questions
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Syllabus

CAT QA — Quantitative Ability chapters

In the order you should study them.

🔢 9 chapters, in order9 chapters
  1. Algebra — Equations, Inequalities and Modulus
  2. Functions, Logarithms and Progressions
  3. Geometry and Coordinate Geometry at CAT Depth
  4. Counting, Probability and Set Theory
  5. Number Systems: Divisibility, Factors, Remainders & Bases
  6. Practice Set — TITA (Type In The Answer)
  7. Arithmetic at CAT Depth: Percentages, Profit, Interest, Ratio, Mixtures & Averages
  8. Time, Speed & Distance and Time & Work at CAT Depth
  9. Inequalities, Maxima–Minima & Mensuration of Solids

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Try a real QA — Quantitative Ability question

A real question from the course. No sign-up needed.

From the chapter: Algebra — Equations, Inequalities and Modulus

If the equation x² + kx + 16 = 0 has equal roots, the value of k is:

Show the answer and why

Answer: B.

Equal roots means the discriminant is zero: k² − 4(1)(16) = 0, so k² = 64 and k = ±8. Both signs are genuine: k = 8 gives (x + 4)² = 0 and k = −8 gives (x − 4)² = 0, each with a repeated root. Option ±4 comes from taking the square root of 16 instead of 64.

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