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Class 9–10 Maths quiz — 6 November 2026

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

Question 1 · AP sums

Find the sum of the first 14 terms of the AP that starts at 9 with common difference 1.

  1. A. 224
  2. B. 154
  3. C. 216
  4. D. 217 ✓

Answer: 217. Sum = n/2 × (2a + (n − 1)d) = 14/2 × (18 + 13) = 217.

Question 2 · Probability

A bag holds 1 red, 5 blue and 1 green balls. One ball is picked at random. What is the probability it is red?

  1. A. 5/7
  2. B. 2/7
  3. C. 1/7 ✓
  4. D. 1/8

Answer: 1/7. Probability = favourable ÷ total = 1/7.

Question 3 · Quadratic equations

What is the larger root of x² − 17x + 72 = 0?

  1. A. 9 ✓
  2. B. 10
  3. C. 8
  4. D. 17

Answer: 9. x² − 17x + 72 = (x − 9)(x − 8) = 0, so the roots are 9 and 8. The larger is 9.

Question 4 · Arithmetic progressions

The first term of an AP is 14 and the common difference is 4. What is its 14th term?

  1. A. 70
  2. B. 66 ✓
  3. C. 74
  4. D. 62

Answer: 66. nth term = a + (n − 1)d = 14 + 13 × 4 = 66.

Question 5 · Coordinate geometry

Find the distance between the points (1, −1) and (7, 7).

  1. A. 14
  2. B. 10 ✓
  3. C. 20
  4. D. 11

Answer: 10. Distance = √(6² + 8²) = √100 = 10.

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