Simple Interest Worksheet for Maths Olympiad

Maths Olympiad topic 16: Simple interest · Set 638 · 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 ₹8500 for 3 years is ₹2295. What is the rate per year? (a) 10% (b) 27% (c) 9% (d) 8%
2. 2.In how many years will ₹9000 earn ₹1980 simple interest at 11% per year? (a) 3 years (b) 2 years (c) 4 years (d) 1 year
3. 3.₹9000 is invested at 3% per year simple interest. What is the amount after 2 years? (a) ₹9810 (b) ₹9540 (c) ₹9270 (d) ₹540
4. 4.In how many years will ₹1500 earn ₹495 simple interest at 11% per year? (a) 3 years (b) 6 years (c) 4 years (d) 2 years
5. 5.In how many years will ₹2000 earn ₹400 simple interest at 10% per year? (a) 4 years (b) 1 year (c) 2 years (d) 3 years
6. 6.What is the simple interest on ₹3500 at 12% per year for 4 years? (a) ₹1680 (b) ₹2100 (c) ₹420 (d) ₹5180
7. 7.The simple interest on ₹1500 for 2 years is ₹90. What is the rate per year? (a) 4% (b) 2% (c) 6% (d) 3%
8. 8.₹8000 is invested at 2% per year simple interest. What is the amount after 3 years? (a) ₹8640 (b) ₹480 (c) ₹8480 (d) ₹8160
9. 9.The simple interest on ₹4500 for 4 years is ₹900. What is the rate per year? (a) 4% (b) 20% (c) 6% (d) 5%
10. 10.In how many years will ₹1500 earn ₹90 simple interest at 3% per year? (a) 4 years (b) 3 years (c) 2 years (d) 1 year
11. 11.₹9000 is invested at 6% per year simple interest. What is the amount after 5 years? (a) ₹11700 (b) ₹12240 (c) ₹9540 (d) ₹2700
12. 12.₹1500 is invested at 5% per year simple interest. What is the amount after 2 years? (a) ₹1725 (b) ₹1575 (c) ₹150 (d) ₹1650
13. 13.In how many years will ₹3000 earn ₹240 simple interest at 2% per year? (a) 4 years (b) 3 years (c) 5 years (d) 8 years
14. 14.₹1000 is invested at 7% per year simple interest. What is the amount after 4 years? (a) ₹280 (b) ₹1070 (c) ₹1280 (d) ₹1350
15. 15.₹10000 is invested at 8% per year simple interest. What is the amount after 5 years? (a) ₹10800 (b) ₹4000 (c) ₹14000 (d) ₹14800
16. 16.What is the simple interest on ₹6000 at 11% per year for 3 years? (a) ₹1980 (b) ₹660 (c) ₹2640 (d) ₹7980
17. 17.₹6500 is invested at 7% per year simple interest. What is the amount after 4 years? (a) ₹6955 (b) ₹8320 (c) ₹1820 (d) ₹8775
18. 18.The simple interest on ₹6000 for 2 years is ₹360. What is the rate per year? (a) 4% (b) 2% (c) 6% (d) 3%
19. 19.What is the simple interest on ₹7000 at 5% per year for 3 years? (a) ₹1400 (b) ₹8050 (c) ₹350 (d) ₹1050
20. 20.₹3000 is invested at 2% per year simple interest. What is the amount after 2 years? (a) ₹3060 (b) ₹3180 (c) ₹3120 (d) ₹120
21. 21.The simple interest on ₹3000 for 2 years is ₹360. What is the rate per year? (a) 7% (b) 12% (c) 5% (d) 6%
22. 22.In how many years will ₹1500 earn ₹180 simple interest at 4% per year? (a) 2 years (b) 6 years (c) 3 years (d) 4 years
23. 23.In how many years will ₹9000 earn ₹540 simple interest at 2% per year? (a) 4 years (b) 2 years (c) 3 years (d) 6 years
24. 24.₹1000 is invested at 5% per year simple interest. What is the amount after 3 years? (a) ₹1050 (b) ₹1150 (c) ₹150 (d) ₹1200
25. 25.The simple interest on ₹6000 for 3 years is ₹360. What is the rate per year? (a) 6% (b) 1% (c) 3% (d) 2%
26. 26.₹1000 is invested at 7% per year simple interest. What is the amount after 5 years? (a) ₹1070 (b) ₹1350 (c) ₹1420 (d) ₹350
27. 27.In how many years will ₹3500 earn ₹420 simple interest at 3% per year? (a) 3 years (b) 5 years (c) 8 years (d) 4 years
28. 28.The simple interest on ₹9000 for 5 years is ₹3600. What is the rate per year? (a) 7% (b) 9% (c) 40% (d) 8%
29. 29.The simple interest on ₹8000 for 4 years is ₹2560. What is the rate per year? (a) 9% (b) 8% (c) 32% (d) 7%
30. 30.In how many years will ₹6000 earn ₹1200 simple interest at 5% per year? (a) 8 years (b) 4 years (c) 5 years (d) 3 years
31. 31.In how many years will ₹7000 earn ₹3850 simple interest at 11% per year? (a) 5 years (b) 4 years (c) 6 years (d) 10 years
32. 32.The simple interest on ₹3500 for 3 years is ₹525. What is the rate per year? (a) 4% (b) 5% (c) 6% (d) 15%
33. 33.In how many years will ₹5500 earn ₹1375 simple interest at 5% per year? (a) 6 years (b) 10 years (c) 5 years (d) 4 years
34. 34.The simple interest on ₹8500 for 3 years is ₹510. What is the rate per year? (a) 6% (b) 3% (c) 2% (d) 1%
35. 35.What is the simple interest on ₹9500 at 10% per year for 2 years? (a) ₹1900 (b) ₹11400 (c) ₹2850 (d) ₹950
36. 36.What is the simple interest on ₹10000 at 10% per year for 2 years? (a) ₹3000 (b) ₹12000 (c) ₹2000 (d) ₹1000
37. 37.What is the simple interest on ₹2500 at 6% per year for 3 years? (a) ₹450 (b) ₹2950 (c) ₹600 (d) ₹150
38. 38.The simple interest on ₹10000 for 2 years is ₹1600. What is the rate per year? (a) 9% (b) 7% (c) 16% (d) 8%
39. 39.₹4500 is invested at 11% per year simple interest. What is the amount after 5 years? (a) ₹7470 (b) ₹2475 (c) ₹4995 (d) ₹6975
40. 40.What is the simple interest on ₹5000 at 4% per year for 2 years? (a) ₹400 (b) ₹200 (c) ₹5400 (d) ₹600

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