Simple Interest Worksheet for Maths Olympiad

Maths Olympiad topic 16: Simple interest · Set 432 · 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 ₹3000 for 2 years is ₹720. What is the rate per year? (a) 11% (b) 13% (c) 12% (d) 24%
2. 2.In how many years will ₹8000 earn ₹800 simple interest at 2% per year? (a) 4 years (b) 5 years (c) 10 years (d) 6 years
3. 3.What is the simple interest on ₹9500 at 12% per year for 5 years? (a) ₹15200 (b) ₹6840 (c) ₹5700 (d) ₹1140
4. 4.The simple interest on ₹6500 for 3 years is ₹390. What is the rate per year? (a) 6% (b) 2% (c) 3% (d) 1%
5. 5.In how many years will ₹8000 earn ₹640 simple interest at 2% per year? (a) 4 years (b) 8 years (c) 5 years (d) 3 years
6. 6.In how many years will ₹2000 earn ₹420 simple interest at 7% per year? (a) 2 years (b) 6 years (c) 3 years (d) 4 years
7. 7.The simple interest on ₹8500 for 5 years is ₹5100. What is the rate per year? (a) 13% (b) 11% (c) 12% (d) 60%
8. 8.In how many years will ₹5500 earn ₹1100 simple interest at 10% per year? (a) 3 years (b) 1 year (c) 2 years (d) 4 years
9. 9.₹7000 is invested at 5% per year simple interest. What is the amount after 3 years? (a) ₹8400 (b) ₹7350 (c) ₹8050 (d) ₹1050
10. 10.The simple interest on ₹10000 for 3 years is ₹900. What is the rate per year? (a) 3% (b) 9% (c) 4% (d) 2%
11. 11.What is the simple interest on ₹2500 at 7% per year for 3 years? (a) ₹175 (b) ₹525 (c) ₹700 (d) ₹3025
12. 12.In how many years will ₹2000 earn ₹440 simple interest at 11% per year? (a) 3 years (b) 4 years (c) 1 year (d) 2 years
13. 13.₹4000 is invested at 5% per year simple interest. What is the amount after 2 years? (a) ₹4200 (b) ₹4600 (c) ₹4400 (d) ₹400
14. 14.The simple interest on ₹8500 for 5 years is ₹1700. What is the rate per year? (a) 4% (b) 3% (c) 20% (d) 5%
15. 15.In how many years will ₹2000 earn ₹180 simple interest at 3% per year? (a) 2 years (b) 4 years (c) 6 years (d) 3 years
16. 16.₹8000 is invested at 11% per year simple interest. What is the amount after 3 years? (a) ₹2640 (b) ₹8880 (c) ₹10640 (d) ₹11520
17. 17.What is the simple interest on ₹3000 at 7% per year for 4 years? (a) ₹210 (b) ₹840 (c) ₹3840 (d) ₹1050
18. 18.What is the simple interest on ₹5000 at 11% per year for 5 years? (a) ₹7750 (b) ₹550 (c) ₹2750 (d) ₹3300
19. 19.The simple interest on ₹2000 for 2 years is ₹160. What is the rate per year? (a) 8% (b) 3% (c) 5% (d) 4%
20. 20.The simple interest on ₹6000 for 5 years is ₹2400. What is the rate per year? (a) 9% (b) 8% (c) 7% (d) 40%
21. 21.What is the simple interest on ₹3500 at 10% per year for 4 years? (a) ₹350 (b) ₹1400 (c) ₹1750 (d) ₹4900
22. 22.The simple interest on ₹8000 for 5 years is ₹4400. What is the rate per year? (a) 10% (b) 12% (c) 55% (d) 11%
23. 23.What is the simple interest on ₹3000 at 11% per year for 3 years? (a) ₹3990 (b) ₹330 (c) ₹1320 (d) ₹990
24. 24.₹5000 is invested at 11% per year simple interest. What is the amount after 5 years? (a) ₹8300 (b) ₹7750 (c) ₹2750 (d) ₹5550
25. 25.What is the simple interest on ₹9500 at 12% per year for 3 years? (a) ₹12920 (b) ₹1140 (c) ₹4560 (d) ₹3420
26. 26.The simple interest on ₹2000 for 3 years is ₹240. What is the rate per year? (a) 3% (b) 12% (c) 5% (d) 4%
27. 27.What is the simple interest on ₹9000 at 8% per year for 4 years? (a) ₹720 (b) ₹3600 (c) ₹11880 (d) ₹2880
28. 28.What is the simple interest on ₹8500 at 7% per year for 5 years? (a) ₹11475 (b) ₹595 (c) ₹2975 (d) ₹3570
29. 29.What is the simple interest on ₹6500 at 11% per year for 4 years? (a) ₹3575 (b) ₹715 (c) ₹2860 (d) ₹9360
30. 30.What is the simple interest on ₹7000 at 2% per year for 3 years? (a) ₹560 (b) ₹7420 (c) ₹420 (d) ₹140
31. 31.What is the simple interest on ₹4500 at 11% per year for 5 years? (a) ₹495 (b) ₹2970 (c) ₹6975 (d) ₹2475
32. 32.In how many years will ₹2000 earn ₹240 simple interest at 3% per year? (a) 5 years (b) 8 years (c) 3 years (d) 4 years
33. 33.₹7500 is invested at 9% per year simple interest. What is the amount after 4 years? (a) ₹10200 (b) ₹8175 (c) ₹2700 (d) ₹10875
34. 34.The simple interest on ₹2000 for 5 years is ₹300. What is the rate per year? (a) 4% (b) 2% (c) 15% (d) 3%
35. 35.₹9500 is invested at 8% per year simple interest. What is the amount after 3 years? (a) ₹2280 (b) ₹11780 (c) ₹10260 (d) ₹12540
36. 36.₹1000 is invested at 11% per year simple interest. What is the amount after 3 years? (a) ₹330 (b) ₹1440 (c) ₹1110 (d) ₹1330
37. 37.What is the simple interest on ₹9500 at 6% per year for 5 years? (a) ₹12350 (b) ₹3420 (c) ₹2850 (d) ₹570
38. 38.₹8000 is invested at 11% per year simple interest. What is the amount after 2 years? (a) ₹10640 (b) ₹8880 (c) ₹1760 (d) ₹9760
39. 39.What is the simple interest on ₹5000 at 10% per year for 2 years? (a) ₹1500 (b) ₹500 (c) ₹6000 (d) ₹1000
40. 40.In how many years will ₹7500 earn ₹750 simple interest at 5% per year? (a) 3 years (b) 1 year (c) 2 years (d) 4 years

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