| Coverage : The GMAT Practice Test - Math - Simple Interest has been designed to test the important concepts related to simple interest. The test covers important topics like evaluating the simple interest on certain amount, determining the rate of interest, evaluating the time period in which certain amount doubles or triples itself etc. |
| 1. | A certain sum of money amounts to Rs.1710 in 2 years and to Rs. 1850 in 3 years. Find the rate of interest. |
| a. | | 80.9% |
| b. | | 88% |
| c. | | 9.80% |
| d. | | 18%
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| 2. | A certain sum of money amounts to Rs.3380 in 3 years and to Rs.3500 in 4 years. Find the rate of interest. |
| a. | | 3.98% |
| b. | | 2.13% |
| c. | | 4.25% |
| d. | | 13%
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| 3. | A certain sum of money amounts to Rs.1850 in 2 years and to Rs.2000 in 3 and a half years. Find the rate of interest. |
| a. | | 9% |
| b. | | 9.29% |
| c. | | 1.8% |
| d. | | 6.07%
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| 4. | At what rate percent per annum will a sum of money double in 12 years? |
| a. | | 2.5 % p.a. |
| b. | | 5.1 % p.a. |
| c. | | 8.33 % p.a. |
| d. | | 6.33 % p.a.
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| 5. | At what rate percent per annum will a sum of money double in 20 years? |
| a. | | 3 % p.a. |
| b. | | 5 % p.a. |
| c. | | 1 % p.a. |
| d. | | 7 % p.a.
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| 6. | At what rate percent per annum will a sum of money double in 18 years? |
| a. | | 5.55 % p.a. |
| b. | | 11.75 % p.a. |
| c. | | 15.4 % p.a. |
| d. | | 9.25 % p.a.
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| 7. | What is the present worth of Rs.150 due in 3 years at 6% simple interest per annum? |
| a. | | 131.03 |
| b. | | 127.12 |
| c. | | 441.01 |
| d. | | 253.35
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| 8. | What is the present worth of Rs.112 due in 2 years at 3% simple interest per annum? |
| a. | | 105.66 |
| b. | | 77.28 |
| c. | | 109.6 |
| d. | | 568.5
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| 9. | What is the present worth of Rs.168 due in 4 years at 8% simple interest per annum? |
| a. | | 300.05 |
| b. | | 146.12 |
| c. | | 417.15 |
| d. | | 127.28
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| 10. | What is the present worth of Rs.138 due in 2 years at 5% simple interest per annum? |
| a. | | 112.12 |
| b. | | 118.18 |
| c. | | 16.06 |
| d. | | 125.45
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| 11. | A sum fetched a total simple interest of Rs.2410.50 at the rate of 7 % p.a. in 4 years. Find out the sum? |
| a. | | 8608.93 |
| b. | | 4556.12 |
| c. | | 5686.01 |
| d. | | 1654.35
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| 12. | A sum fetched a total simple interest of Rs.4500 at the rate of 9 % p.a. in 6 years. Find out the sum? |
| a. | | 1356.63 |
| b. | | 4686.06 |
| c. | | 6654.14 |
| d. | | 8333.34
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| 13. | A sum fetched a total simple interest of Rs.3800.25 at the rate of 8 % p.a. in 5 years. Find out the sum? |
| a. | | 6008.10 |
| b. | | 6258.25 |
| c. | | 9500.63 |
| d. | | 8405.05
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| 14. | A sum fetched a total simple interest of Rs.1625.50 at the rate of 6 % p.a. in 3 years. Find out the sum? |
| a. | | 493.05 |
| b. | | 826.55 |
| c. | | 9003.06 |
| d. | | 9030.56
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| 15. | The simple interest on a certain sum of money at the rate of 2 % p.a. for 5 years is Rs.500. At what rate of interest the same amount of interest can be received on the same sum after 3 years? |
| a. | | 8.4% |
| b. | | 2.5% |
| c. | | 3.3% |
| d. | | 5.05%
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| 16. | The simple interest on a certain sum of money at the rate of 4 % p.a. for 2 years is Rs.554. At what rate of interest the same amount of interest can be received on the same sum after 2 years? |
| a. | | 3% |
| b. | | 4% |
| c. | | 1.03% |
| d. | | 5%
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| 17. | The simple interest on a certain sum of money at the rate of 5 % p.a. for 8 years is Rs.610. At what rate of interest the same amount of interest can be received on the same sum after 5 years? |
| a. | | 9% |
| b. | | 1.23% |
| c. | | 8% |
| d. | | 1.08%
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| 18. | The simple interest on a certain sum of money at the rate of 3 % p.a. for 4 years is Rs.800. At what rate of interest, can the same amount of interest on the same sum be earned, after 8 years? |
| a. | | 15% |
| b. | | 9% |
| c. | | 1.8% |
| d. | | 1.5%
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| 19. | Find out the ratio of the simple interest earned by a certain amount, of the same rate of interest, for 3 years and 5 years. |
| a. | | 1:5 |
| b. | | 3:5 |
| c. | | 1:3 |
| d. | | 0:5
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| 20. | Find out the ratio of simple interest earned by a certain amount, of the same rate of interest for 2 years and 6 years. |
| a. | | 1:6 |
| b. | | 3:6 |
| c. | | 1:2 |
| d. | | 1:3
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| 21. | Find out the ratio of simple interest earned by a certain amount, of the same rate of interest for 4 years and 8 years. |
| a. | | 2:8 |
| b. | | 4:2 |
| c. | | 1:2 |
| d. | | 1:4
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| 22. | Find out the ratio of simple interest earned by a certain amount, of the same rate of interest for 8 years and 12 years. |
| a. | | 2:4 |
| b. | | 1:12 |
| c. | | 1:3 |
| d. | | 2:3
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| 23. | Find out the ratio of simple interest earned by a certain amount, of the same rate of interest for 6 years and 10 years. |
| a. | | 1:5 |
| b. | | 3:5 |
| c. | | 1:6 |
| d. | | 2:5
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| 24. | Find out the ratio of simple interest earned by a certain amount, of the same rate of interest for 4 years and10 years. |
| a. | | 1:4 |
| b. | | 1:5 |
| c. | | 2:4 |
| d. | | 2:5
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| 25. | Find out the simple interest on Rs.8 for 6 months, at the rate of 2 paisa per rupee, per month. |
| a. | | 1.04 |
| b. | | 0.96 |
| c. | | 0.14 |
| d. | | 1.15
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| 26. | Find out the simple interest on Rs.6 for 3 months, at the rate of 2 paisa per rupee, per month. |
| a. | | 0.36 |
| b. | | 0.63 |
| c. | | 1.36 |
| d. | | 1.04
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| 27. | Find out the simple interest on Rs.12 for 4 months, at the rate of 4 paisa per rupee, per month. |
| a. | | 1.02 |
| b. | | 0.92 |
| c. | | 1.92 |
| d. | | 1.52
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| 28. | Find out the simple interest on Rs.10 for 5 months, at the rate of 3 paisa per rupee, per month. |
| a. | | 0.05 |
| b. | | 1.5 |
| c. | | 0.95 |
| d. | | 1.21
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| 29. | What will be the sum, if a sum of money at simple interest amounts to Rs.424 in 4 years and Rs.478 in 5 years? |
| a. | | Rs.198 |
| b. | | Rs.254 |
| c. | | Rs.141 |
| d. | | Rs.208
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| 30. | What will be the sum, if a sum of money at simple interest amounts to Rs.630 in 3 years and Rs.675 in 4 years? |
| a. | | Rs.800 |
| b. | | Rs.651 |
| c. | | Rs.495 |
| d. | | Rs.500
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| 31. | What will be the sum, if a sum of money at simple interest amounts to Rs.825 in 2 years and Rs.864 in 3 years? |
| a. | | Rs.747 |
| b. | | Rs.181 |
| c. | | Rs.300 |
| d. | | Rs.900
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| 32. | What will be the sum, if a sum of money at simple interest amounts to Rs.520 in 5 years and Rs.560 in 6 years? |
| a. | | Rs.450 |
| b. | | Rs.320 |
| c. | | Rs.565 |
| d. | | Rs.889
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| 33. | In how many years will a sum of money double itself at 15% per annum? |
| a. | | 1 year 8 months |
| b. | | 4 years 8 months |
| c. | | 3 years 6 months |
| d. | | 6 years 6 months
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| 34. | In how many years will a sum of money double itself at 20% per annum? |
| a. | | 1 year |
| b. | | 4 years 8 months |
| c. | | 3 years 6 months |
| d. | | 5 years
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| 35. | In how many years will a sum of money double itself at 25% per annum? |
| a. | | 4 years |
| b. | | 2 years 8 months |
| c. | | 3 years |
| d. | | 1 year 5 months
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| 36. | In how many years will a sum of money double itself at 24% per annum? |
| a. | | 1 year 3 months |
| b. | | 1 year 8 months |
| c. | | 4 years 2 months |
| d. | | 4 years 3 months
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| 37. | At what rate percent of simple interest will a sum of money double itself in 15 years? |
| a. | | 9/8% |
| b. | | 33/4% |
| c. | | 20/3% |
| d. | | None of the above
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| 38. | At what rate percent of simple interest will a sum of money double itself in 20 years? |
| a. | | 5% |
| b. | | 1% |
| c. | | 3% |
| d. | | 9%
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| 39. | At what rate percent of simple interest will a sum of money double itself in 25 years? |
| a. | | 12% |
| b. | | 15% |
| c. | | 7% |
| d. | | 4%
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| 40. | At what rate percent of simple interest will a sum of money double itself in 24 years? |
| a. | | 1/8% |
| b. | | 25/6% |
| c. | | 8/3% |
| d. | | 1/4%
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| 41. | In how much time would the simple interest on a certain sum be 0.25 times the principal at 8% p.a.? |
| a. | | 25/4 years |
| b. | | 41/3 years |
| c. | | 25/8 years |
| d. | | 13/4 years
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| 42. | In how much time would the simple interest on a certain sum be 0.17 times the principal at 10% p.a.? |
| a. | | 17/10 years |
| b. | | 5/2 years |
| c. | | 25/3 years |
| d. | | 9/2 years
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| 43. | In how much time would the simple interest on a certain sum be 0.125 times the principal at 4% p.a.? |
| a. | | 31/6 years |
| b. | | 4/3 years |
| c. | | 10/9 years |
| d. | | 25/8 years
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| 44. | In how much time would the simple interest on a certain sum be 0.5 times the principal at 6% p.a.? |
| a. | | 17/4 years |
| b. | | 5/3 years |
| c. | | 25/3 years |
| d. | | 4/3 years
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| 45. | How long will it take a sum of money invested at 5% p.a. S.I. to increase its value by 50%? |
| a. | | 10 years |
| b. | | 30 years |
| c. | | 25 years |
| d. | | 12 years
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