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Class 9–10 Maths quiz — 7 October 2026

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

Question 1 · Linear equations

If x + y = 15 and x − y = 3, what is x?

  1. A. 9 ✓
  2. B. 10
  3. C. 18
  4. D. 3

Answer: 9. Add the two equations: 2x = 15 + 3 = 18, so x = 9.

Question 2 · Coordinate geometry

Find the distance between the points (−3, 4) and (2, 16).

  1. A. 12
  2. B. 26
  3. C. 13 ✓
  4. D. 60

Answer: 13. Distance = √(5² + 12²) = √169 = 13.

Question 3 · Quadratic equations

What is the larger root of x² − 5x + 6 = 0?

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

Answer: 3. x² − 5x + 6 = (x − 3)(x − 2) = 0, so the roots are 3 and 2. The larger is 3.

Question 4 · AP sums

Find the sum of the first 18 terms of the AP that starts at 6 with common difference 5.

  1. A. 868
  2. B. 873 ✓
  3. C. 819
  4. D. 918

Answer: 873. Sum = n/2 × (2a + (n − 1)d) = 18/2 × (12 + 85) = 873.

Question 5 · Mensuration

A cylinder has a radius of 7 cm and a height of 11 cm. What is its volume? (Use π = 22/7)

  1. A. 3388 cm³
  2. B. 242 cm³
  3. C. 1848 cm³
  4. D. 1694 cm³ ✓

Answer: 1694 cm³. Volume = π r² h = 22/7 × 7 × 7 × 11 = 1694 cm³.

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