Simple Interest Worksheet for Maths Olympiad

Maths Olympiad topic 16: Simple interest · Set 493 · 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.In how many years will ₹7500 earn ₹2475 simple interest at 11% per year? (a) 4 years (b) 6 years (c) 3 years (d) 2 years
2. 2.What is the simple interest on ₹9500 at 4% per year for 2 years? (a) ₹760 (b) ₹380 (c) ₹1140 (d) ₹10260
3. 3.The simple interest on ₹3000 for 2 years is ₹540. What is the rate per year? (a) 8% (b) 10% (c) 18% (d) 9%
4. 4.The simple interest on ₹5000 for 4 years is ₹2000. What is the rate per year? (a) 9% (b) 40% (c) 10% (d) 11%
5. 5.₹1000 is invested at 7% per year simple interest. What is the amount after 3 years? (a) ₹210 (b) ₹1210 (c) ₹1280 (d) ₹1070
6. 6.The simple interest on ₹8500 for 4 years is ₹1360. What is the rate per year? (a) 4% (b) 16% (c) 5% (d) 3%
7. 7.What is the simple interest on ₹4500 at 7% per year for 2 years? (a) ₹630 (b) ₹315 (c) ₹5130 (d) ₹945
8. 8.₹1000 is invested at 2% per year simple interest. What is the amount after 5 years? (a) ₹100 (b) ₹1120 (c) ₹1100 (d) ₹1020
9. 9.In how many years will ₹9500 earn ₹2375 simple interest at 5% per year? (a) 6 years (b) 5 years (c) 10 years (d) 4 years
10. 10.₹6000 is invested at 10% per year simple interest. What is the amount after 4 years? (a) ₹2400 (b) ₹9000 (c) ₹8400 (d) ₹6600
11. 11.The simple interest on ₹5000 for 3 years is ₹1350. What is the rate per year? (a) 9% (b) 10% (c) 27% (d) 8%
12. 12.What is the simple interest on ₹9500 at 2% per year for 2 years? (a) ₹380 (b) ₹9880 (c) ₹570 (d) ₹190
13. 13.₹5000 is invested at 3% per year simple interest. What is the amount after 4 years? (a) ₹600 (b) ₹5150 (c) ₹5600 (d) ₹5750
14. 14.₹4000 is invested at 3% per year simple interest. What is the amount after 5 years? (a) ₹600 (b) ₹4720 (c) ₹4120 (d) ₹4600
15. 15.In how many years will ₹7500 earn ₹1800 simple interest at 12% per year? (a) 1 year (b) 2 years (c) 4 years (d) 3 years
16. 16.In how many years will ₹10000 earn ₹1000 simple interest at 5% per year? (a) 4 years (b) 2 years (c) 3 years (d) 1 year
17. 17.The simple interest on ₹6000 for 2 years is ₹1440. What is the rate per year? (a) 24% (b) 11% (c) 12% (d) 13%
18. 18.The simple interest on ₹9000 for 2 years is ₹900. What is the rate per year? (a) 6% (b) 5% (c) 4% (d) 10%
19. 19.The simple interest on ₹9000 for 2 years is ₹1260. What is the rate per year? (a) 14% (b) 6% (c) 8% (d) 7%
20. 20.In how many years will ₹9000 earn ₹3240 simple interest at 9% per year? (a) 4 years (b) 5 years (c) 3 years (d) 8 years
21. 21.₹3000 is invested at 9% per year simple interest. What is the amount after 4 years? (a) ₹3270 (b) ₹1080 (c) ₹4080 (d) ₹4350
22. 22.What is the simple interest on ₹9000 at 8% per year for 3 years? (a) ₹720 (b) ₹2880 (c) ₹11160 (d) ₹2160
23. 23.In how many years will ₹1000 earn ₹400 simple interest at 10% per year? (a) 5 years (b) 8 years (c) 4 years (d) 3 years
24. 24.What is the simple interest on ₹3000 at 5% per year for 4 years? (a) ₹150 (b) ₹3600 (c) ₹750 (d) ₹600
25. 25.The simple interest on ₹7500 for 3 years is ₹1800. What is the rate per year? (a) 8% (b) 9% (c) 7% (d) 24%
26. 26.₹1000 is invested at 2% per year simple interest. What is the amount after 4 years? (a) ₹1100 (b) ₹1080 (c) ₹1020 (d) ₹80
27. 27.What is the simple interest on ₹3000 at 2% per year for 4 years? (a) ₹300 (b) ₹60 (c) ₹3240 (d) ₹240
28. 28.The simple interest on ₹10000 for 5 years is ₹2500. What is the rate per year? (a) 6% (b) 5% (c) 25% (d) 4%
29. 29.₹1500 is invested at 12% per year simple interest. What is the amount after 5 years? (a) ₹2400 (b) ₹2580 (c) ₹1680 (d) ₹900
30. 30.The simple interest on ₹4000 for 2 years is ₹240. What is the rate per year? (a) 3% (b) 6% (c) 4% (d) 2%
31. 31.What is the simple interest on ₹6000 at 9% per year for 3 years? (a) ₹1620 (b) ₹7620 (c) ₹2160 (d) ₹540
32. 32.₹9000 is invested at 12% per year simple interest. What is the amount after 3 years? (a) ₹3240 (b) ₹10080 (c) ₹13320 (d) ₹12240
33. 33.The simple interest on ₹4500 for 2 years is ₹180. What is the rate per year? (a) 1% (b) 3% (c) 4% (d) 2%
34. 34.In how many years will ₹5000 earn ₹3000 simple interest at 12% per year? (a) 5 years (b) 10 years (c) 6 years (d) 4 years
35. 35.₹9500 is invested at 7% per year simple interest. What is the amount after 5 years? (a) ₹3325 (b) ₹12825 (c) ₹13490 (d) ₹10165
36. 36.What is the simple interest on ₹3500 at 7% per year for 5 years? (a) ₹4725 (b) ₹1470 (c) ₹245 (d) ₹1225
37. 37.In how many years will ₹4000 earn ₹240 simple interest at 3% per year? (a) 4 years (b) 3 years (c) 2 years (d) 1 year
38. 38.₹5500 is invested at 2% per year simple interest. What is the amount after 3 years? (a) ₹5830 (b) ₹5610 (c) ₹330 (d) ₹5940
39. 39.What is the simple interest on ₹9500 at 9% per year for 2 years? (a) ₹855 (b) ₹11210 (c) ₹2565 (d) ₹1710
40. 40.₹4500 is invested at 2% per year simple interest. What is the amount after 3 years? (a) ₹270 (b) ₹4770 (c) ₹4860 (d) ₹4590

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