Simple Interest Worksheet for Maths Olympiad

Maths Olympiad topic 16: Simple interest · Set 429 · 40 questions

How to solve it (P × R × T ÷ 100): Simple interest = P × R × T ÷ 100 (P = principal, R = rate % per year, T = years). Amount = principal + interest. Rate = SI × 100 ÷ (P × T); time = SI × 100 ÷ (P × R).

1. 1.₹9000 is invested at 12% per year simple interest. What is the amount after 3 years? (a) ₹13320 (b) ₹12240 (c) ₹3240 (d) ₹10080
2. 2.In how many years will ₹3500 earn ₹1540 simple interest at 11% per year? (a) 5 years (b) 3 years (c) 8 years (d) 4 years
3. 3.In how many years will ₹1000 earn ₹200 simple interest at 5% per year? (a) 4 years (b) 3 years (c) 5 years (d) 8 years
4. 4.The simple interest on ₹7000 for 2 years is ₹1540. What is the rate per year? (a) 10% (b) 22% (c) 12% (d) 11%
5. 5.In how many years will ₹1500 earn ₹120 simple interest at 2% per year? (a) 8 years (b) 5 years (c) 4 years (d) 3 years
6. 6.In how many years will ₹6500 earn ₹1300 simple interest at 5% per year? (a) 8 years (b) 3 years (c) 4 years (d) 5 years
7. 7.The simple interest on ₹9500 for 3 years is ₹1140. What is the rate per year? (a) 12% (b) 5% (c) 3% (d) 4%
8. 8.In how many years will ₹8000 earn ₹1600 simple interest at 10% per year? (a) 4 years (b) 2 years (c) 3 years (d) 1 year
9. 9.The simple interest on ₹1000 for 3 years is ₹300. What is the rate per year? (a) 30% (b) 9% (c) 11% (d) 10%
10. 10.What is the simple interest on ₹8000 at 7% per year for 5 years? (a) ₹10800 (b) ₹560 (c) ₹3360 (d) ₹2800
11. 11.In how many years will ₹8000 earn ₹4800 simple interest at 12% per year? (a) 4 years (b) 6 years (c) 5 years (d) 10 years
12. 12.The simple interest on ₹3000 for 2 years is ₹120. What is the rate per year? (a) 1% (b) 4% (c) 3% (d) 2%
13. 13.The simple interest on ₹5000 for 3 years is ₹450. What is the rate per year? (a) 4% (b) 2% (c) 3% (d) 9%
14. 14.The simple interest on ₹1500 for 3 years is ₹180. What is the rate per year? (a) 12% (b) 3% (c) 5% (d) 4%
15. 15.₹5500 is invested at 9% per year simple interest. What is the amount after 2 years? (a) ₹6985 (b) ₹6490 (c) ₹5995 (d) ₹990
16. 16.What is the simple interest on ₹5500 at 7% per year for 2 years? (a) ₹770 (b) ₹385 (c) ₹6270 (d) ₹1155
17. 17.The simple interest on ₹6000 for 2 years is ₹480. What is the rate per year? (a) 4% (b) 3% (c) 8% (d) 5%
18. 18.The simple interest on ₹4000 for 2 years is ₹320. What is the rate per year? (a) 3% (b) 4% (c) 8% (d) 5%
19. 19.₹6500 is invested at 6% per year simple interest. What is the amount after 3 years? (a) ₹6890 (b) ₹1170 (c) ₹8060 (d) ₹7670
20. 20.In how many years will ₹2500 earn ₹500 simple interest at 4% per year? (a) 4 years (b) 5 years (c) 10 years (d) 6 years
21. 21.What is the simple interest on ₹5500 at 7% per year for 3 years? (a) ₹385 (b) ₹1540 (c) ₹1155 (d) ₹6655
22. 22.₹3000 is invested at 11% per year simple interest. What is the amount after 4 years? (a) ₹1320 (b) ₹4320 (c) ₹3330 (d) ₹4650
23. 23.In how many years will ₹2500 earn ₹350 simple interest at 7% per year? (a) 3 years (b) 4 years (c) 2 years (d) 1 year
24. 24.₹5000 is invested at 8% per year simple interest. What is the amount after 2 years? (a) ₹6200 (b) ₹5400 (c) ₹5800 (d) ₹800
25. 25.What is the simple interest on ₹6500 at 9% per year for 2 years? (a) ₹1755 (b) ₹585 (c) ₹7670 (d) ₹1170
26. 26.What is the simple interest on ₹7500 at 7% per year for 2 years? (a) ₹1050 (b) ₹8550 (c) ₹525 (d) ₹1575
27. 27.₹8500 is invested at 12% per year simple interest. What is the amount after 2 years? (a) ₹2040 (b) ₹9520 (c) ₹11560 (d) ₹10540
28. 28.The simple interest on ₹7500 for 4 years is ₹2400. What is the rate per year? (a) 9% (b) 32% (c) 8% (d) 7%
29. 29.₹3500 is invested at 11% per year simple interest. What is the amount after 4 years? (a) ₹5425 (b) ₹5040 (c) ₹1540 (d) ₹3885
30. 30.In how many years will ₹9000 earn ₹1440 simple interest at 8% per year? (a) 4 years (b) 3 years (c) 2 years (d) 1 year
31. 31.The simple interest on ₹5000 for 5 years is ₹1000. What is the rate per year? (a) 20% (b) 4% (c) 3% (d) 5%
32. 32.What is the simple interest on ₹8500 at 9% per year for 3 years? (a) ₹765 (b) ₹10795 (c) ₹3060 (d) ₹2295
33. 33.In how many years will ₹4000 earn ₹1280 simple interest at 8% per year? (a) 3 years (b) 8 years (c) 5 years (d) 4 years
34. 34.₹2500 is invested at 9% per year simple interest. What is the amount after 3 years? (a) ₹3400 (b) ₹2725 (c) ₹675 (d) ₹3175
35. 35.The simple interest on ₹1000 for 2 years is ₹220. What is the rate per year? (a) 22% (b) 11% (c) 10% (d) 12%
36. 36.The simple interest on ₹4000 for 4 years is ₹640. What is the rate per year? (a) 3% (b) 16% (c) 5% (d) 4%
37. 37.₹9000 is invested at 10% per year simple interest. What is the amount after 3 years? (a) ₹9900 (b) ₹12600 (c) ₹11700 (d) ₹2700
38. 38.The simple interest on ₹2500 for 3 years is ₹150. What is the rate per year? (a) 1% (b) 6% (c) 3% (d) 2%
39. 39.In how many years will ₹2500 earn ₹1500 simple interest at 12% per year? (a) 10 years (b) 6 years (c) 5 years (d) 4 years
40. 40.What is the simple interest on ₹6500 at 4% per year for 3 years? (a) ₹260 (b) ₹1040 (c) ₹7280 (d) ₹780

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