All Free Mathematics MCQs with Answers
Every Mathematics question in the bank, across all chapters, each with the correct answer and a written explanation. Free and unlimited, with no account needed.
1,551 questions · page 39 of 78
- A. 16%
- B. 12.5%
- C. 8%
- D. 12%
Explanation: A 16% stock pays Rs. 16 income for every Rs. 100 face value. When purchased at Rs. 128, the return on investment is 16/128 x 100 = 12.5%.
Correct answer: 12.5%- A. 3440
- B. 4440
- C. 5440
- D. 6440
Explanation: The price of Rs. 3200 stock at 107 is Rs. 3200 x 107/100 = Rs. 3424. Brokerage at 1/2% of the nominal stock value is Rs.
Correct answer: 3440- A. Rs. 1550
- B. Rs. 1650
- C. Rs. 1750
- D. Rs. 2000
Explanation: The compound interest on Rs. 4000 for 2 years at 10% is Rs. 4000[(1.10)^2 - 1] = Rs. 840, so half of it is Rs. 420.
Correct answer: Rs. 1750- A. Rs. 400
- B. Rs. 500
- C. Rs. 600
- D. Rs. 800
Explanation: For 2 years at 10%, compound interest is P[(1.10)^2 - 1] = 0.21P = Rs. 525, so P = Rs. 2500.
Correct answer: Rs. 500- A. Rs. 400
- B. Rs. 450
- C. Rs. 460
- D. Rs. 480
Explanation: At 12.5% for 2 years, compound interest is P[(1.125)^2 - 1] = 0.265625P = Rs. 510, giving P = Rs. 1920.
Correct answer: Rs. 480- A. Rs. 3096
- B. Rs. 4076
- C. Rs. 4085
- D. Rs. 4096Education
Explanation: The amount factor for 6.25% compound interest over 3 years is (1.0625)^3 = (17/16)^3 = 4913/4096. Thus the principal is Rs.
Correct answer: Rs. 4096Education767. The compound interest on Rs. 30,000 at 7% per annum is Rs. 4347. The period(in years) is_________?
- A. 2
- B. 2 1/2
- C. 3
- D. 4
Explanation: For 2 years, the compound interest on Rs. 30,000 at 7% is Rs. 30,000[(1.07)^2 - 1] = Rs. 30,000 x 0.1449 = Rs. 4347.
Correct answer: 2- A. Rs. 2.50
- B. Rs. 3
- C. Rs. 3.75
- D. Rs. 4
Explanation: With half-yearly compounding, the rate per half-year is 5% and there are 2 periods in 1 year. Compound interest is Rs.
Correct answer: Rs. 3- A. Rs. 31
- B. Rs. 32.10
- C. Rs. 40.40
- D. Rs. 64.10
Explanation: Compound interest after 4 years is Rs. 1000[(1.10)^4 - 1] = Rs. 464.10, whereas simple interest is Rs. 1000 x 10 x 4 / 100 = Rs. 400.
Correct answer: Rs. 64.10- A. Rs. 51.25
- B. Rs. 52
- C. Rs. 54.25
- D. Rs. 60
Explanation: From simple interest, Rs. 50 = P x 5 x 2 / 100, so the principal is P = Rs. 500. Compound interest for 2 years is Rs.
Correct answer: Rs. 51.25- A. Rs. 1851
- B. Rs. 1941
- C. Rs. 1951
- D. Rs. 1961
Explanation: Nine months contains 3 quarterly periods, and the quarterly rate is 16% / 4 = 4%. Compound interest is Rs. 15,625[(1.04)^3 - 1] = Rs.
Correct answer: Rs. 1951- A. Rs. 2.04
- B. Rs. 3.06
- C. Rs. 4.80
- D. Rs. 8.30
Explanation: For yearly compounding over 1.5 years, the amount is Rs. 5000 x 1.04 plus half-year simple interest on Rs. 5200, giving Rs. 5200 + Rs.
Correct answer: Rs. 2.04- A. 16
- B. 8
- C. 12
- D. 20
Explanation: If the money doubles in 4 years, each 4-year period multiplies it by 2.
Correct answer: 12- A. 18
- B. 12
- C. 9
- D. 6
Explanation: The amount becomes 3 times in 3 years, so each 3-year interval multiplies the principal by 3.
Correct answer: 6- A. 4%
- B. 5%
- C. 6%
- D. 8%
Explanation: For 2 years, the difference between compound and simple interest is P(r/100)^2 = Rs. 41 - Rs. 40 = Rs. 1.
Correct answer: 5%- A. Rs.81.60
- B. Rs.160
- C. Rs.1081.60
- D. Rs.99
Explanation: Simple interest of Rs. 80 at 4% for 2 years gives P x 4 x 2 / 100 = Rs. 80, so P = Rs. 1000. Compound interest is Rs.
Correct answer: Rs.81.60- A. Rs.6620
- B. Rs.6500
- C. Rs.6800
- D. Rs.6400
Explanation: The compound interest on Rs. 20,000 for 3 years at 10% is Rs. 20,000[(1.10)^3 - 1] = Rs. 20,000 x 0.331 = Rs. 6620.
Correct answer: Rs.6620- A. 4 years
- B. 6 years
- C. 2 years
- D. 3 years
Explanation: The growth factor is Rs. 9261 / Rs. 8000 = 1.157625, and 1.05^3 = 1.157625. Therefore the interval is 3 years at 5% compound interest.
Correct answer: 3 years- A. Rs.420.20
- B. Rs.319.06
- C. Rs.306.04
- D. Rs.294.75
Explanation: For half-yearly compounding, the rate per half-year is 4% / 2 = 2%, and 1.5 years contains 3 half-years. Compound interest is Rs.
Correct answer: Rs.306.04- A. Rs. 21000
- B. Rs. 17500
- C. Rs. 19000
- D. Rs. 24500
Explanation: Let the cost prices be x rupees and y rupees, so x + y = 35000 rupees. The total profit is 32% of 35000 rupees = 11200 rupees, giving…
Correct answer: Rs. 21000