Simple Interest Worksheet for Maths Olympiad

Maths Olympiad topic 16: Simple interest · Set 954 · 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.₹9500 is invested at 11% per year simple interest. What is the amount after 2 years? (a) ₹11590 (b) ₹10545 (c) ₹12635 (d) ₹2090
2. 2.₹10000 is invested at 8% per year simple interest. What is the amount after 4 years? (a) ₹3200 (b) ₹10800 (c) ₹14000 (d) ₹13200
3. 3.₹1500 is invested at 7% per year simple interest. What is the amount after 2 years? (a) ₹1815 (b) ₹210 (c) ₹1605 (d) ₹1710
4. 4.In how many years will ₹6000 earn ₹1980 simple interest at 11% per year? (a) 3 years (b) 4 years (c) 2 years (d) 6 years
5. 5.What is the simple interest on ₹2500 at 6% per year for 3 years? (a) ₹2950 (b) ₹150 (c) ₹450 (d) ₹600
6. 6.What is the simple interest on ₹3000 at 11% per year for 5 years? (a) ₹330 (b) ₹1650 (c) ₹1980 (d) ₹4650
7. 7.The simple interest on ₹4500 for 4 years is ₹2160. What is the rate per year? (a) 12% (b) 48% (c) 13% (d) 11%
8. 8.In how many years will ₹9000 earn ₹810 simple interest at 3% per year? (a) 4 years (b) 6 years (c) 2 years (d) 3 years
9. 9.The simple interest on ₹7000 for 2 years is ₹1540. What is the rate per year? (a) 10% (b) 22% (c) 12% (d) 11%
10. 10.What is the simple interest on ₹1500 at 11% per year for 3 years? (a) ₹495 (b) ₹660 (c) ₹165 (d) ₹1995
11. 11.₹5500 is invested at 9% per year simple interest. What is the amount after 2 years? (a) ₹990 (b) ₹6985 (c) ₹6490 (d) ₹5995
12. 12.The simple interest on ₹2500 for 3 years is ₹525. What is the rate per year? (a) 8% (b) 21% (c) 7% (d) 6%
13. 13.₹4500 is invested at 4% per year simple interest. What is the amount after 2 years? (a) ₹4680 (b) ₹5040 (c) ₹4860 (d) ₹360
14. 14.What is the simple interest on ₹2000 at 3% per year for 5 years? (a) ₹300 (b) ₹360 (c) ₹60 (d) ₹2300
15. 15.₹1500 is invested at 12% per year simple interest. What is the amount after 5 years? (a) ₹2580 (b) ₹2400 (c) ₹900 (d) ₹1680
16. 16.The simple interest on ₹7500 for 3 years is ₹1800. What is the rate per year? (a) 8% (b) 9% (c) 24% (d) 7%
17. 17.₹6500 is invested at 11% per year simple interest. What is the amount after 3 years? (a) ₹8645 (b) ₹7215 (c) ₹2145 (d) ₹9360
18. 18.The simple interest on ₹3000 for 4 years is ₹600. What is the rate per year? (a) 4% (b) 20% (c) 6% (d) 5%
19. 19.The simple interest on ₹5500 for 3 years is ₹1980. What is the rate per year? (a) 12% (b) 36% (c) 11% (d) 13%
20. 20.In how many years will ₹7500 earn ₹450 simple interest at 3% per year? (a) 3 years (b) 4 years (c) 1 year (d) 2 years
21. 21.In how many years will ₹3500 earn ₹980 simple interest at 7% per year? (a) 8 years (b) 3 years (c) 4 years (d) 5 years
22. 22.The simple interest on ₹8500 for 2 years is ₹680. What is the rate per year? (a) 8% (b) 3% (c) 4% (d) 5%
23. 23.₹10000 is invested at 4% per year simple interest. What is the amount after 2 years? (a) ₹10800 (b) ₹800 (c) ₹10400 (d) ₹11200
24. 24.₹8500 is invested at 11% per year simple interest. What is the amount after 2 years? (a) ₹9435 (b) ₹1870 (c) ₹11305 (d) ₹10370
25. 25.The simple interest on ₹8500 for 4 years is ₹3400. What is the rate per year? (a) 40% (b) 10% (c) 9% (d) 11%
26. 26.What is the simple interest on ₹9000 at 3% per year for 3 years? (a) ₹270 (b) ₹810 (c) ₹9810 (d) ₹1080
27. 27.The simple interest on ₹6000 for 3 years is ₹1440. What is the rate per year? (a) 24% (b) 7% (c) 9% (d) 8%
28. 28.In how many years will ₹3500 earn ₹420 simple interest at 6% per year? (a) 4 years (b) 2 years (c) 3 years (d) 1 year
29. 29.The simple interest on ₹1000 for 2 years is ₹220. What is the rate per year? (a) 12% (b) 22% (c) 11% (d) 10%
30. 30.The simple interest on ₹5500 for 3 years is ₹1320. What is the rate per year? (a) 9% (b) 7% (c) 24% (d) 8%
31. 31.In how many years will ₹7500 earn ₹3600 simple interest at 12% per year? (a) 4 years (b) 5 years (c) 8 years (d) 3 years
32. 32.The simple interest on ₹3500 for 4 years is ₹1400. What is the rate per year? (a) 9% (b) 10% (c) 11% (d) 40%
33. 33.What is the simple interest on ₹3500 at 10% per year for 2 years? (a) ₹1050 (b) ₹4200 (c) ₹700 (d) ₹350
34. 34.What is the simple interest on ₹2000 at 12% per year for 2 years? (a) ₹2480 (b) ₹480 (c) ₹240 (d) ₹720
35. 35.What is the simple interest on ₹9000 at 12% per year for 3 years? (a) ₹4320 (b) ₹3240 (c) ₹1080 (d) ₹12240
36. 36.What is the simple interest on ₹1000 at 11% per year for 3 years? (a) ₹330 (b) ₹1330 (c) ₹110 (d) ₹440
37. 37.What is the simple interest on ₹2500 at 11% per year for 5 years? (a) ₹1650 (b) ₹1375 (c) ₹3875 (d) ₹275
38. 38.In how many years will ₹6000 earn ₹600 simple interest at 2% per year? (a) 5 years (b) 4 years (c) 10 years (d) 6 years
39. 39.₹5000 is invested at 8% per year simple interest. What is the amount after 5 years? (a) ₹7400 (b) ₹2000 (c) ₹7000 (d) ₹5400
40. 40.The simple interest on ₹4500 for 3 years is ₹945. What is the rate per year? (a) 7% (b) 6% (c) 8% (d) 21%

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