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Class 7–8 Maths quiz — 3 October 2026

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

Question 1 · Linear equations

Solve for x: 5x + 5 = 45

  1. A. 7
  2. B. 40
  3. C. 8 ✓
  4. D. 9

Answer: 8. Subtract 5 from both sides: 5x = 40. Divide by 5: x = 8.

Question 2 · Square roots

What is the square root of 225?

  1. A. 30
  2. B. 17
  3. C. 112
  4. D. 15 ✓

Answer: 15. 15 × 15 = 225, so √225 = 15.

Question 3 · Triangle area

A triangle has a base of 20 cm and a height of 11 cm. What is its area?

  1. A. 440 cm²
  2. B. 110 cm² ✓
  3. C. 90 cm²
  4. D. 220 cm²

Answer: 110 cm². Area = ½ × base × height = ½ × 20 × 11 = 110 cm².

Question 4 · Simple interest

Find the simple interest on ₹8,000 at 8% per year for 5 years.

  1. A. ₹11,200
  2. B. ₹3,200 ✓
  3. C. ₹3,120
  4. D. ₹320

Answer: ₹3,200. Simple interest = P × R × T ÷ 100 = 8000 × 8 × 5 ÷ 100 = ₹3,200.

Question 5 · Circles

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

  1. A. 176 cm²
  2. B. 22 cm²
  3. C. 44 cm²
  4. D. 154 cm² ✓

Answer: 154 cm². Area = π × r² = 22/7 × 7 × 7 = 154 cm².

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