Math MCQ Questions with answers

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Here Important Math MCQ questions are added which are frequently asked in almost all the examinations. You can check the correct answer of any question on clicking the show answer button. The Correct answer will be displayed below. You can share any question with your friends on whatsapp by tapping Share button.

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Q. A is 20% more than B, and B is 25% less than C. Then A is what percent of C?

  • (A) 80%
  • (B) 85%
  • (C) 90%
  • (D) 95%
📝 Notes
✅ Correct Answer: (C) 90%
Explanation: Let C = 100. Then B = 75. A = 75 × 1.2 = 90. Therefore, A is 90% of C.

Published by Mr. Dubey ⭐ 109.87K Points at 25-Jul-2026 09:05 am in Math

Q. The cost price of an article is increased by 25% and then decreased by 10%. The net percentage change is:

  • (A) 12.5% increase
  • (B) 12.5% decrease
  • (C) 15% increase
  • (D) 10% increase
📝 Notes
✅ Correct Answer: (A) 12.5% increase
Explanation: Net change = 25 - 10 - (25×10/100) = 12.5% increase.

Published by Mr. Dubey ⭐ 109.87K Points at 25-Jul-2026 09:06 am in Math

Q. If 62.5% of a number is 250, then the number is:

  • (A) 360
  • (B) 380
  • (C) 400
  • (D) 420
📝 Notes
✅ Correct Answer: (C) 400
Explanation: 62.5% = 5/8. Number = 250 × 8/5 = 400.

Published by Mr. Dubey ⭐ 109.87K Points at 25-Jul-2026 09:06 am in Math

Q. A candidate secures 360 marks and gets 72% marks. How many marks did he lose?

  • (A) 120
  • (B) 130
  • (C) 140
  • (D) 150
📝 Notes
✅ Correct Answer: (C) 140
Explanation: Maximum marks = 360 × 100/72 = 500. Marks lost = 500 - 360 = 140.

Published by Mr. Dubey ⭐ 109.87K Points at 25-Jul-2026 09:06 am in Math

Q. The value of a car depreciates by 15% every year. If its current value is ₹8,00,000, its value after one year will be:

  • (A) ₹6,80,000
  • (B) ₹6,90,000
  • (C) ₹7,00,000
  • (D) ₹7,20,000
📝 Notes
✅ Correct Answer: (A) ₹6,80,000
Explanation: Value after one year = 8,00,000 × 85/100 = ₹6,80,000.

Published by Mr. Dubey ⭐ 109.87K Points at 25-Jul-2026 09:06 am in Math

Q. If A is 25% less than B, then B is how much percent more than A?

  • (A) 25%
  • (B) 30%
  • (C) 33.33%
  • (D) 35%
📝 Notes
✅ Correct Answer: (C) 33.33%
Explanation: Let B = 100, then A = 75. Percentage more = (25/75) × 100 = 33.33%.

Published by Mr. Dubey ⭐ 109.87K Points at 25-Jul-2026 09:06 am in Math

Q. The population of a city increases by 20% in the first year and by 25% in the second year. The overall increase is:

  • (A) 45%
  • (B) 48%
  • (C) 50%
  • (D) 52%
📝 Notes
✅ Correct Answer: (C) 50%
Explanation: Net increase = 20 + 25 + (20×25/100) = 50%.

Published by Mr. Dubey ⭐ 109.87K Points at 25-Jul-2026 09:06 am in Math

Q. A shirt marked at ₹2,000 is sold after a discount of 15%. The discount amount is:

  • (A) ₹250
  • (B) ₹275
  • (C) ₹300
  • (D) ₹350
📝 Notes
✅ Correct Answer: (C) ₹300
Explanation: Discount = 15% of ₹2,000 = ₹300.

Published by Mr. Dubey ⭐ 109.87K Points at 25-Jul-2026 09:06 am in Math

Q. A number is increased by 50% and then reduced by 40%. The final value is what percent of the original?

  • (A) 85%
  • (B) 90%
  • (C) 95%
  • (D) 100%
📝 Notes
✅ Correct Answer: (B) 90%
Explanation: Assume the number is 100. After a 50% increase it becomes 150. Reducing 150 by 40% gives 90. Hence, the final value is 90% of the original.

Published by Mr. Dubey ⭐ 109.87K Points at 25-Jul-2026 09:06 am in Math

Q. If 45% of the students in a school are girls and the total number of students is 1,200, then the number of boys is:

  • (A) 540
  • (B) 600
  • (C) 660
  • (D) 720
📝 Notes
✅ Correct Answer: (C) 660
Explanation: Girls = 45% of 1,200 = 540. Boys = 1,200 - 540 = 660.

Published by Mr. Dubey ⭐ 109.87K Points at 25-Jul-2026 09:06 am in Math

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