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Class 7–8 Maths quiz — 13 October 2026

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

Question 1 · Linear equations

Solve for x: 2x + 14 = 20

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

Answer: 3. Subtract 14 from both sides: 2x = 6. Divide by 2: x = 3.

Question 2 · Exponents

What is 5^2 × 5^2?

  1. A. 625 ✓
  2. B. 3125
  3. C. 50
  4. D. 125

Answer: 625. When you multiply powers of the same base, add the exponents: 5^4 = 625.

Question 3 · Triangle area

A triangle has a base of 6 cm and a height of 8 cm. What is its area?

  1. A. 48 cm²
  2. B. 14 cm²
  3. C. 24 cm² ✓
  4. D. 96 cm²

Answer: 24 cm². Area = ½ × base × height = ½ × 6 × 8 = 24 cm².

Question 4 · Circles

A circle has a radius of 14 cm. What is its area? (Use π = 22/7)

  1. A. 196 cm²
  2. B. 638 cm²
  3. C. 1232 cm²
  4. D. 616 cm² ✓

Answer: 616 cm². Area = π × r² = 22/7 × 14 × 14 = 616 cm².

Question 5 · Ratios

₹90 is shared between Ria and Sam in the ratio 3 : 7. How much does Sam get?

  1. A. ₹45
  2. B. ₹36
  3. C. ₹63 ✓
  4. D. ₹72

Answer: ₹63. 3 + 7 = 10 equal parts. One part = ₹90 ÷ 10 = ₹9. Sam gets 7 parts = ₹63.

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