Simple Interest Worksheet for Maths Olympiad

Maths Olympiad topic 16: Simple interest · Set 406 · 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.The simple interest on ₹7000 for 4 years is ₹3360. What is the rate per year? (a) 48% (b) 11% (c) 12% (d) 13%
2. 2.In how many years will ₹2000 earn ₹800 simple interest at 8% per year? (a) 5 years (b) 4 years (c) 10 years (d) 6 years
3. 3.What is the simple interest on ₹6500 at 5% per year for 5 years? (a) ₹1950 (b) ₹8125 (c) ₹325 (d) ₹1625
4. 4.In how many years will ₹8500 earn ₹1275 simple interest at 3% per year? (a) 5 years (b) 10 years (c) 6 years (d) 4 years
5. 5.What is the simple interest on ₹7000 at 7% per year for 3 years? (a) ₹490 (b) ₹1470 (c) ₹1960 (d) ₹8470
6. 6.The simple interest on ₹1000 for 4 years is ₹360. What is the rate per year? (a) 8% (b) 36% (c) 9% (d) 10%
7. 7.₹6000 is invested at 2% per year simple interest. What is the amount after 4 years? (a) ₹6120 (b) ₹480 (c) ₹6600 (d) ₹6480
8. 8.In how many years will ₹1500 earn ₹495 simple interest at 11% per year? (a) 6 years (b) 4 years (c) 2 years (d) 3 years
9. 9.The simple interest on ₹3500 for 3 years is ₹210. What is the rate per year? (a) 3% (b) 1% (c) 2% (d) 6%
10. 10.In how many years will ₹2000 earn ₹880 simple interest at 11% per year? (a) 3 years (b) 8 years (c) 5 years (d) 4 years
11. 11.The simple interest on ₹6500 for 2 years is ₹650. What is the rate per year? (a) 5% (b) 4% (c) 6% (d) 10%
12. 12.What is the simple interest on ₹3500 at 6% per year for 5 years? (a) ₹1050 (b) ₹1260 (c) ₹4550 (d) ₹210
13. 13.The simple interest on ₹2500 for 2 years is ₹550. What is the rate per year? (a) 22% (b) 10% (c) 11% (d) 12%
14. 14.The simple interest on ₹8500 for 5 years is ₹1700. What is the rate per year? (a) 3% (b) 20% (c) 5% (d) 4%
15. 15.What is the simple interest on ₹6000 at 10% per year for 3 years? (a) ₹2400 (b) ₹1800 (c) ₹600 (d) ₹7800
16. 16.What is the simple interest on ₹2000 at 3% per year for 2 years? (a) ₹120 (b) ₹60 (c) ₹180 (d) ₹2120
17. 17.The simple interest on ₹2500 for 4 years is ₹1100. What is the rate per year? (a) 11% (b) 44% (c) 12% (d) 10%
18. 18.What is the simple interest on ₹8000 at 11% per year for 3 years? (a) ₹10640 (b) ₹2640 (c) ₹3520 (d) ₹880
19. 19.In how many years will ₹9000 earn ₹2160 simple interest at 8% per year? (a) 6 years (b) 4 years (c) 2 years (d) 3 years
20. 20.What is the simple interest on ₹6500 at 11% per year for 2 years? (a) ₹715 (b) ₹2145 (c) ₹7930 (d) ₹1430
21. 21.The simple interest on ₹5500 for 5 years is ₹2750. What is the rate per year? (a) 10% (b) 9% (c) 11% (d) 50%
22. 22.In how many years will ₹4000 earn ₹320 simple interest at 4% per year? (a) 1 year (b) 3 years (c) 4 years (d) 2 years
23. 23.What is the simple interest on ₹8000 at 9% per year for 3 years? (a) ₹2880 (b) ₹10160 (c) ₹720 (d) ₹2160
24. 24.What is the simple interest on ₹5500 at 6% per year for 5 years? (a) ₹7150 (b) ₹1980 (c) ₹330 (d) ₹1650
25. 25.What is the simple interest on ₹9000 at 9% per year for 5 years? (a) ₹4050 (b) ₹810 (c) ₹4860 (d) ₹13050
26. 26.In how many years will ₹7000 earn ₹420 simple interest at 3% per year? (a) 2 years (b) 1 year (c) 4 years (d) 3 years
27. 27.In how many years will ₹5500 earn ₹1320 simple interest at 12% per year? (a) 1 year (b) 4 years (c) 3 years (d) 2 years
28. 28.In how many years will ₹3500 earn ₹630 simple interest at 9% per year? (a) 1 year (b) 2 years (c) 3 years (d) 4 years
29. 29.The simple interest on ₹9500 for 3 years is ₹2565. What is the rate per year? (a) 27% (b) 10% (c) 8% (d) 9%
30. 30.In how many years will ₹1500 earn ₹180 simple interest at 4% per year? (a) 4 years (b) 3 years (c) 6 years (d) 2 years
31. 31.₹2500 is invested at 9% per year simple interest. What is the amount after 3 years? (a) ₹675 (b) ₹2725 (c) ₹3175 (d) ₹3400
32. 32.₹4000 is invested at 11% per year simple interest. What is the amount after 4 years? (a) ₹6200 (b) ₹1760 (c) ₹5760 (d) ₹4440
33. 33.What is the simple interest on ₹3000 at 11% per year for 2 years? (a) ₹330 (b) ₹660 (c) ₹3660 (d) ₹990
34. 34.In how many years will ₹6500 earn ₹1300 simple interest at 4% per year? (a) 5 years (b) 6 years (c) 10 years (d) 4 years
35. 35.The simple interest on ₹3000 for 4 years is ₹960. What is the rate per year? (a) 7% (b) 9% (c) 8% (d) 32%
36. 36.The simple interest on ₹1000 for 5 years is ₹450. What is the rate per year? (a) 8% (b) 9% (c) 10% (d) 45%
37. 37.₹6500 is invested at 9% per year simple interest. What is the amount after 5 years? (a) ₹7085 (b) ₹10010 (c) ₹2925 (d) ₹9425
38. 38.The simple interest on ₹8500 for 5 years is ₹4675. What is the rate per year? (a) 11% (b) 10% (c) 55% (d) 12%
39. 39.₹8500 is invested at 5% per year simple interest. What is the amount after 4 years? (a) ₹10625 (b) ₹10200 (c) ₹1700 (d) ₹8925
40. 40.In how many years will ₹7500 earn ₹1500 simple interest at 10% per year? (a) 1 year (b) 4 years (c) 3 years (d) 2 years

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