Simple Interest Worksheet for Maths Olympiad

Maths Olympiad topic 16: Simple interest · Set 286 · 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 ₹1000 for 4 years is ₹360. What is the rate per year? (a) 10% (b) 8% (c) 9% (d) 36%
2. 2.In how many years will ₹9000 earn ₹2880 simple interest at 8% per year? (a) 5 years (b) 4 years (c) 3 years (d) 8 years
3. 3.What is the simple interest on ₹1000 at 5% per year for 2 years? (a) ₹50 (b) ₹100 (c) ₹150 (d) ₹1100
4. 4.What is the simple interest on ₹9000 at 9% per year for 2 years? (a) ₹2430 (b) ₹810 (c) ₹10620 (d) ₹1620
5. 5.In how many years will ₹3000 earn ₹720 simple interest at 12% per year? (a) 3 years (b) 2 years (c) 1 year (d) 4 years
6. 6.₹9500 is invested at 11% per year simple interest. What is the amount after 5 years? (a) ₹14725 (b) ₹5225 (c) ₹15770 (d) ₹10545
7. 7.The simple interest on ₹4000 for 3 years is ₹600. What is the rate per year? (a) 4% (b) 15% (c) 5% (d) 6%
8. 8.In how many years will ₹4000 earn ₹600 simple interest at 3% per year? (a) 6 years (b) 4 years (c) 10 years (d) 5 years
9. 9.In how many years will ₹5500 earn ₹550 simple interest at 2% per year? (a) 4 years (b) 5 years (c) 10 years (d) 6 years
10. 10.₹1500 is invested at 2% per year simple interest. What is the amount after 2 years? (a) ₹1560 (b) ₹1530 (c) ₹1590 (d) ₹60
11. 11.The simple interest on ₹2000 for 4 years is ₹800. What is the rate per year? (a) 40% (b) 9% (c) 11% (d) 10%
12. 12.The simple interest on ₹10000 for 2 years is ₹1400. What is the rate per year? (a) 8% (b) 14% (c) 6% (d) 7%
13. 13.The simple interest on ₹6000 for 2 years is ₹1440. What is the rate per year? (a) 12% (b) 13% (c) 24% (d) 11%
14. 14.In how many years will ₹10000 earn ₹800 simple interest at 2% per year? (a) 4 years (b) 8 years (c) 5 years (d) 3 years
15. 15.₹8000 is invested at 11% per year simple interest. What is the amount after 2 years? (a) ₹1760 (b) ₹10640 (c) ₹9760 (d) ₹8880
16. 16.The simple interest on ₹5000 for 5 years is ₹1500. What is the rate per year? (a) 6% (b) 30% (c) 7% (d) 5%
17. 17.₹5500 is invested at 3% per year simple interest. What is the amount after 3 years? (a) ₹495 (b) ₹5665 (c) ₹6160 (d) ₹5995
18. 18.What is the simple interest on ₹10000 at 6% per year for 2 years? (a) ₹11200 (b) ₹600 (c) ₹1800 (d) ₹1200
19. 19.In how many years will ₹1500 earn ₹210 simple interest at 7% per year? (a) 4 years (b) 3 years (c) 2 years (d) 1 year
20. 20.₹2000 is invested at 10% per year simple interest. What is the amount after 2 years? (a) ₹2600 (b) ₹2200 (c) ₹2400 (d) ₹400
21. 21.In how many years will ₹1500 earn ₹240 simple interest at 8% per year? (a) 1 year (b) 4 years (c) 2 years (d) 3 years
22. 22.The simple interest on ₹2000 for 5 years is ₹800. What is the rate per year? (a) 9% (b) 7% (c) 40% (d) 8%
23. 23.₹3500 is invested at 9% per year simple interest. What is the amount after 2 years? (a) ₹4130 (b) ₹630 (c) ₹3815 (d) ₹4445
24. 24.In how many years will ₹1000 earn ₹200 simple interest at 4% per year? (a) 6 years (b) 4 years (c) 10 years (d) 5 years
25. 25.The simple interest on ₹3500 for 3 years is ₹840. What is the rate per year? (a) 8% (b) 7% (c) 24% (d) 9%
26. 26.The simple interest on ₹7500 for 2 years is ₹1650. What is the rate per year? (a) 10% (b) 11% (c) 12% (d) 22%
27. 27.₹9000 is invested at 4% per year simple interest. What is the amount after 5 years? (a) ₹11160 (b) ₹1800 (c) ₹9360 (d) ₹10800
28. 28.What is the simple interest on ₹4500 at 3% per year for 3 years? (a) ₹540 (b) ₹4905 (c) ₹405 (d) ₹135
29. 29.What is the simple interest on ₹3000 at 3% per year for 4 years? (a) ₹360 (b) ₹450 (c) ₹3360 (d) ₹90
30. 30.₹2000 is invested at 6% per year simple interest. What is the amount after 3 years? (a) ₹2480 (b) ₹2360 (c) ₹360 (d) ₹2120
31. 31.What is the simple interest on ₹8500 at 4% per year for 2 years? (a) ₹1020 (b) ₹680 (c) ₹9180 (d) ₹340
32. 32.What is the simple interest on ₹1000 at 3% per year for 2 years? (a) ₹1060 (b) ₹60 (c) ₹90 (d) ₹30
33. 33.What is the simple interest on ₹8500 at 8% per year for 2 years? (a) ₹9860 (b) ₹1360 (c) ₹680 (d) ₹2040
34. 34.What is the simple interest on ₹1500 at 4% per year for 3 years? (a) ₹240 (b) ₹1680 (c) ₹180 (d) ₹60
35. 35.₹7500 is invested at 3% per year simple interest. What is the amount after 3 years? (a) ₹8400 (b) ₹8175 (c) ₹7725 (d) ₹675
36. 36.The simple interest on ₹2500 for 4 years is ₹400. What is the rate per year? (a) 16% (b) 4% (c) 3% (d) 5%
37. 37.The simple interest on ₹3000 for 5 years is ₹1800. What is the rate per year? (a) 13% (b) 60% (c) 12% (d) 11%
38. 38.What is the simple interest on ₹4500 at 7% per year for 3 years? (a) ₹5445 (b) ₹1260 (c) ₹315 (d) ₹945
39. 39.What is the simple interest on ₹1000 at 3% per year for 4 years? (a) ₹120 (b) ₹30 (c) ₹1120 (d) ₹150
40. 40.In how many years will ₹8500 earn ₹2040 simple interest at 8% per year? (a) 3 years (b) 2 years (c) 4 years (d) 6 years

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