Simple Interest Worksheet for Maths Olympiad

Maths Olympiad topic 16: Simple interest · Set 628 · 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 ₹7000 earn ₹2310 simple interest at 11% per year? (a) 6 years (b) 2 years (c) 4 years (d) 3 years
2. 2.₹1500 is invested at 6% per year simple interest. What is the amount after 5 years? (a) ₹2040 (b) ₹1590 (c) ₹1950 (d) ₹450
3. 3.In how many years will ₹8500 earn ₹4080 simple interest at 12% per year? (a) 4 years (b) 3 years (c) 8 years (d) 5 years
4. 4.In how many years will ₹9500 earn ₹1140 simple interest at 3% per year? (a) 4 years (b) 3 years (c) 8 years (d) 5 years
5. 5.The simple interest on ₹3000 for 3 years is ₹450. What is the rate per year? (a) 5% (b) 15% (c) 4% (d) 6%
6. 6.₹7000 is invested at 11% per year simple interest. What is the amount after 3 years? (a) ₹10080 (b) ₹7770 (c) ₹2310 (d) ₹9310
7. 7.The simple interest on ₹2000 for 2 years is ₹240. What is the rate per year? (a) 5% (b) 7% (c) 12% (d) 6%
8. 8.What is the simple interest on ₹9000 at 2% per year for 5 years? (a) ₹9900 (b) ₹900 (c) ₹180 (d) ₹1080
9. 9.In how many years will ₹1500 earn ₹270 simple interest at 9% per year? (a) 1 year (b) 3 years (c) 2 years (d) 4 years
10. 10.The simple interest on ₹1000 for 4 years is ₹400. What is the rate per year? (a) 40% (b) 9% (c) 10% (d) 11%
11. 11.The simple interest on ₹1000 for 2 years is ₹80. What is the rate per year? (a) 4% (b) 5% (c) 8% (d) 3%
12. 12.₹2000 is invested at 6% per year simple interest. What is the amount after 3 years? (a) ₹2360 (b) ₹2120 (c) ₹360 (d) ₹2480
13. 13.₹8000 is invested at 2% per year simple interest. What is the amount after 5 years? (a) ₹8160 (b) ₹800 (c) ₹8800 (d) ₹8960
14. 14.The simple interest on ₹9500 for 5 years is ₹4275. What is the rate per year? (a) 45% (b) 9% (c) 8% (d) 10%
15. 15.In how many years will ₹8500 earn ₹2720 simple interest at 8% per year? (a) 5 years (b) 4 years (c) 8 years (d) 3 years
16. 16.In how many years will ₹2500 earn ₹1000 simple interest at 8% per year? (a) 4 years (b) 5 years (c) 6 years (d) 10 years
17. 17.In how many years will ₹2000 earn ₹200 simple interest at 5% per year? (a) 3 years (b) 1 year (c) 4 years (d) 2 years
18. 18.What is the simple interest on ₹1000 at 3% per year for 3 years? (a) ₹120 (b) ₹90 (c) ₹30 (d) ₹1090
19. 19.₹8000 is invested at 4% per year simple interest. What is the amount after 2 years? (a) ₹8640 (b) ₹640 (c) ₹8960 (d) ₹8320
20. 20.₹6000 is invested at 6% per year simple interest. What is the amount after 2 years? (a) ₹720 (b) ₹7080 (c) ₹6720 (d) ₹6360
21. 21.In how many years will ₹4500 earn ₹810 simple interest at 9% per year? (a) 1 year (b) 2 years (c) 4 years (d) 3 years
22. 22.In how many years will ₹9000 earn ₹1350 simple interest at 3% per year? (a) 10 years (b) 6 years (c) 5 years (d) 4 years
23. 23.In how many years will ₹1500 earn ₹600 simple interest at 10% per year? (a) 5 years (b) 8 years (c) 3 years (d) 4 years
24. 24.The simple interest on ₹10000 for 5 years is ₹3500. What is the rate per year? (a) 35% (b) 6% (c) 8% (d) 7%
25. 25.What is the simple interest on ₹6000 at 10% per year for 2 years? (a) ₹7200 (b) ₹1800 (c) ₹1200 (d) ₹600
26. 26.The simple interest on ₹4000 for 4 years is ₹800. What is the rate per year? (a) 6% (b) 20% (c) 5% (d) 4%
27. 27.What is the simple interest on ₹8000 at 4% per year for 2 years? (a) ₹640 (b) ₹8640 (c) ₹960 (d) ₹320
28. 28.In how many years will ₹5500 earn ₹1320 simple interest at 8% per year? (a) 2 years (b) 6 years (c) 4 years (d) 3 years
29. 29.What is the simple interest on ₹7500 at 4% per year for 4 years? (a) ₹300 (b) ₹8700 (c) ₹1500 (d) ₹1200
30. 30.The simple interest on ₹2000 for 5 years is ₹1200. What is the rate per year? (a) 11% (b) 12% (c) 60% (d) 13%
31. 31.In how many years will ₹2500 earn ₹1375 simple interest at 11% per year? (a) 5 years (b) 6 years (c) 10 years (d) 4 years
32. 32.What is the simple interest on ₹4500 at 2% per year for 3 years? (a) ₹4770 (b) ₹360 (c) ₹270 (d) ₹90
33. 33.In how many years will ₹1500 earn ₹270 simple interest at 6% per year? (a) 6 years (b) 2 years (c) 4 years (d) 3 years
34. 34.In how many years will ₹8000 earn ₹1200 simple interest at 3% per year? (a) 5 years (b) 10 years (c) 4 years (d) 6 years
35. 35.In how many years will ₹4500 earn ₹720 simple interest at 4% per year? (a) 3 years (b) 8 years (c) 4 years (d) 5 years
36. 36.₹5500 is invested at 9% per year simple interest. What is the amount after 4 years? (a) ₹1980 (b) ₹7975 (c) ₹7480 (d) ₹5995
37. 37.What is the simple interest on ₹9000 at 9% per year for 2 years? (a) ₹810 (b) ₹1620 (c) ₹10620 (d) ₹2430
38. 38.What is the simple interest on ₹3000 at 6% per year for 2 years? (a) ₹180 (b) ₹360 (c) ₹540 (d) ₹3360
39. 39.In how many years will ₹7000 earn ₹1680 simple interest at 6% per year? (a) 3 years (b) 8 years (c) 5 years (d) 4 years
40. 40.What is the simple interest on ₹8500 at 7% per year for 5 years? (a) ₹3570 (b) ₹2975 (c) ₹11475 (d) ₹595

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