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Class 9–10 Maths quiz — 14 October 2026

Questions and answers from this day. Play today's quiz to build your streak.

Question 1 · Mensuration

A cylinder has a radius of 7 cm and a height of 8 cm. What is its volume? (Use π = 22/7)

  1. A. 1232 cm³ ✓
  2. B. 176 cm³
  3. C. 1386 cm³
  4. D. 352 cm³

Answer: 1232 cm³. Volume = π r² h = 22/7 × 7 × 7 × 8 = 1232 cm³.

Question 2 · Algebraic identities

If a + b = 12 and ab = 4, what is a² + b²?

  1. A. 144
  2. B. 136 ✓
  3. C. 140
  4. D. 8

Answer: 136. (a + b)² = a² + 2ab + b², so a² + b² = 12² − 2 × 4 = 144 − 8 = 136.

Question 3 · Linear equations

If x + y = 6 and x − y = 2, what is x?

  1. A. 4 ✓
  2. B. 2
  3. C. 5
  4. D. 6

Answer: 4. Add the two equations: 2x = 6 + 2 = 8, so x = 4.

Question 4 · Probability

A bag holds 5 red, 3 blue and 5 green balls. One ball is picked at random. What is the probability it is red?

  1. A. 5/13 ✓
  2. B. 5/3
  3. C. 6/13
  4. D. 5/14

Answer: 5/13. Probability = favourable ÷ total = 5/13.

Question 5 · Coordinate geometry

Find the distance between the points (−3, −1) and (37, 41).

  1. A. 59
  2. B. 58 ✓
  3. C. 1680
  4. D. 57

Answer: 58. Distance = √(40² + 42²) = √3364 = 58.

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