Simple Interest Worksheet for Maths Olympiad

Maths Olympiad topic 16: Simple interest · Set 685 · 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.What is the simple interest on ₹8500 at 9% per year for 3 years? (a) ₹10795 (b) ₹2295 (c) ₹765 (d) ₹3060
2. 2.In how many years will ₹7000 earn ₹3360 simple interest at 12% per year? (a) 8 years (b) 5 years (c) 3 years (d) 4 years
3. 3.₹3500 is invested at 3% per year simple interest. What is the amount after 4 years? (a) ₹4025 (b) ₹420 (c) ₹3920 (d) ₹3605
4. 4.In how many years will ₹9000 earn ₹540 simple interest at 2% per year? (a) 3 years (b) 4 years (c) 6 years (d) 2 years
5. 5.The simple interest on ₹9500 for 3 years is ₹3135. What is the rate per year? (a) 11% (b) 12% (c) 33% (d) 10%
6. 6.The simple interest on ₹4500 for 3 years is ₹810. What is the rate per year? (a) 7% (b) 18% (c) 6% (d) 5%
7. 7.What is the simple interest on ₹8000 at 9% per year for 2 years? (a) ₹2160 (b) ₹9440 (c) ₹720 (d) ₹1440
8. 8.₹5500 is invested at 9% per year simple interest. What is the amount after 2 years? (a) ₹5995 (b) ₹6490 (c) ₹990 (d) ₹6985
9. 9.What is the simple interest on ₹8500 at 10% per year for 2 years? (a) ₹1700 (b) ₹10200 (c) ₹850 (d) ₹2550
10. 10.In how many years will ₹9500 earn ₹1520 simple interest at 4% per year? (a) 8 years (b) 3 years (c) 4 years (d) 5 years
11. 11.In how many years will ₹4500 earn ₹810 simple interest at 6% per year? (a) 2 years (b) 6 years (c) 3 years (d) 4 years
12. 12.The simple interest on ₹8500 for 3 years is ₹2805. What is the rate per year? (a) 10% (b) 11% (c) 12% (d) 33%
13. 13.₹10000 is invested at 8% per year simple interest. What is the amount after 4 years? (a) ₹14000 (b) ₹13200 (c) ₹10800 (d) ₹3200
14. 14.In how many years will ₹3500 earn ₹140 simple interest at 2% per year? (a) 4 years (b) 2 years (c) 3 years (d) 1 year
15. 15.The simple interest on ₹10000 for 2 years is ₹400. What is the rate per year? (a) 3% (b) 1% (c) 2% (d) 4%
16. 16.The simple interest on ₹1000 for 3 years is ₹330. What is the rate per year? (a) 12% (b) 11% (c) 10% (d) 33%
17. 17.₹2500 is invested at 5% per year simple interest. What is the amount after 5 years? (a) ₹2625 (b) ₹625 (c) ₹3250 (d) ₹3125
18. 18.The simple interest on ₹4000 for 5 years is ₹600. What is the rate per year? (a) 2% (b) 4% (c) 3% (d) 15%
19. 19.₹6500 is invested at 5% per year simple interest. What is the amount after 4 years? (a) ₹8125 (b) ₹6825 (c) ₹7800 (d) ₹1300
20. 20.₹2000 is invested at 10% per year simple interest. What is the amount after 4 years? (a) ₹2800 (b) ₹800 (c) ₹3000 (d) ₹2200
21. 21.The simple interest on ₹4500 for 4 years is ₹1800. What is the rate per year? (a) 9% (b) 40% (c) 11% (d) 10%
22. 22.What is the simple interest on ₹8500 at 8% per year for 5 years? (a) ₹11900 (b) ₹4080 (c) ₹680 (d) ₹3400
23. 23.₹9500 is invested at 7% per year simple interest. What is the amount after 5 years? (a) ₹12825 (b) ₹3325 (c) ₹13490 (d) ₹10165
24. 24.The simple interest on ₹1000 for 4 years is ₹320. What is the rate per year? (a) 32% (b) 7% (c) 8% (d) 9%
25. 25.The simple interest on ₹2500 for 2 years is ₹200. What is the rate per year? (a) 5% (b) 3% (c) 4% (d) 8%
26. 26.What is the simple interest on ₹5000 at 4% per year for 4 years? (a) ₹200 (b) ₹1000 (c) ₹800 (d) ₹5800
27. 27.The simple interest on ₹2500 for 4 years is ₹300. What is the rate per year? (a) 12% (b) 3% (c) 4% (d) 2%
28. 28.₹8500 is invested at 2% per year simple interest. What is the amount after 2 years? (a) ₹8670 (b) ₹9010 (c) ₹8840 (d) ₹340
29. 29.The simple interest on ₹5000 for 3 years is ₹1500. What is the rate per year? (a) 9% (b) 10% (c) 11% (d) 30%
30. 30.In how many years will ₹3000 earn ₹240 simple interest at 4% per year? (a) 1 year (b) 4 years (c) 2 years (d) 3 years
31. 31.₹2500 is invested at 8% per year simple interest. What is the amount after 3 years? (a) ₹2700 (b) ₹600 (c) ₹3300 (d) ₹3100
32. 32.The simple interest on ₹1000 for 4 years is ₹360. What is the rate per year? (a) 8% (b) 36% (c) 9% (d) 10%
33. 33.In how many years will ₹5000 earn ₹800 simple interest at 4% per year? (a) 5 years (b) 3 years (c) 8 years (d) 4 years
34. 34.In how many years will ₹1000 earn ₹120 simple interest at 3% per year? (a) 5 years (b) 3 years (c) 4 years (d) 8 years
35. 35.What is the simple interest on ₹4500 at 2% per year for 5 years? (a) ₹540 (b) ₹90 (c) ₹450 (d) ₹4950
36. 36.In how many years will ₹10000 earn ₹900 simple interest at 3% per year? (a) 2 years (b) 4 years (c) 6 years (d) 3 years
37. 37.What is the simple interest on ₹2000 at 7% per year for 2 years? (a) ₹420 (b) ₹280 (c) ₹2280 (d) ₹140
38. 38.In how many years will ₹1500 earn ₹150 simple interest at 5% per year? (a) 4 years (b) 1 year (c) 2 years (d) 3 years
39. 39.In how many years will ₹8000 earn ₹960 simple interest at 3% per year? (a) 3 years (b) 5 years (c) 4 years (d) 8 years
40. 40.In how many years will ₹8000 earn ₹1760 simple interest at 11% per year? (a) 4 years (b) 1 year (c) 2 years (d) 3 years

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