Simple Interest Worksheet for Maths Olympiad

Maths Olympiad topic 16: Simple interest · Set 715 · 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.In how many years will ₹2000 earn ₹400 simple interest at 4% per year? (a) 4 years (b) 5 years (c) 6 years (d) 10 years
2. 2.In how many years will ₹5000 earn ₹450 simple interest at 3% per year? (a) 6 years (b) 2 years (c) 3 years (d) 4 years
3. 3.In how many years will ₹3500 earn ₹630 simple interest at 9% per year? (a) 3 years (b) 4 years (c) 2 years (d) 1 year
4. 4.What is the simple interest on ₹9000 at 2% per year for 4 years? (a) ₹900 (b) ₹180 (c) ₹720 (d) ₹9720
5. 5.What is the simple interest on ₹3000 at 6% per year for 4 years? (a) ₹720 (b) ₹3720 (c) ₹180 (d) ₹900
6. 6.₹6500 is invested at 10% per year simple interest. What is the amount after 3 years? (a) ₹8450 (b) ₹1950 (c) ₹9100 (d) ₹7150
7. 7.In how many years will ₹2500 earn ₹250 simple interest at 5% per year? (a) 3 years (b) 1 year (c) 4 years (d) 2 years
8. 8.The simple interest on ₹3500 for 2 years is ₹280. What is the rate per year? (a) 8% (b) 4% (c) 3% (d) 5%
9. 9.What is the simple interest on ₹6000 at 8% per year for 3 years? (a) ₹7440 (b) ₹480 (c) ₹1440 (d) ₹1920
10. 10.In how many years will ₹3000 earn ₹420 simple interest at 7% per year? (a) 2 years (b) 4 years (c) 3 years (d) 1 year
11. 11.The simple interest on ₹1500 for 5 years is ₹300. What is the rate per year? (a) 3% (b) 20% (c) 4% (d) 5%
12. 12.The simple interest on ₹7000 for 4 years is ₹840. What is the rate per year? (a) 2% (b) 12% (c) 3% (d) 4%
13. 13.In how many years will ₹10000 earn ₹1800 simple interest at 9% per year? (a) 3 years (b) 4 years (c) 1 year (d) 2 years
14. 14.What is the simple interest on ₹10000 at 4% per year for 5 years? (a) ₹400 (b) ₹2000 (c) ₹12000 (d) ₹2400
15. 15.In how many years will ₹8500 earn ₹680 simple interest at 4% per year? (a) 3 years (b) 4 years (c) 2 years (d) 1 year
16. 16.The simple interest on ₹4500 for 5 years is ₹900. What is the rate per year? (a) 3% (b) 5% (c) 20% (d) 4%
17. 17.₹8500 is invested at 3% per year simple interest. What is the amount after 3 years? (a) ₹765 (b) ₹9520 (c) ₹9265 (d) ₹8755
18. 18.What is the simple interest on ₹4000 at 5% per year for 4 years? (a) ₹800 (b) ₹4800 (c) ₹1000 (d) ₹200
19. 19.What is the simple interest on ₹2000 at 11% per year for 2 years? (a) ₹660 (b) ₹440 (c) ₹220 (d) ₹2440
20. 20.The simple interest on ₹6500 for 5 years is ₹3900. What is the rate per year? (a) 13% (b) 60% (c) 12% (d) 11%
21. 21.In how many years will ₹3000 earn ₹360 simple interest at 4% per year? (a) 2 years (b) 4 years (c) 3 years (d) 6 years
22. 22.₹5500 is invested at 5% per year simple interest. What is the amount after 2 years? (a) ₹6050 (b) ₹550 (c) ₹5775 (d) ₹6325
23. 23.₹10000 is invested at 6% per year simple interest. What is the amount after 3 years? (a) ₹10600 (b) ₹1800 (c) ₹12400 (d) ₹11800
24. 24.₹8500 is invested at 11% per year simple interest. What is the amount after 5 years? (a) ₹9435 (b) ₹13175 (c) ₹4675 (d) ₹14110
25. 25.In how many years will ₹9000 earn ₹1080 simple interest at 6% per year? (a) 3 years (b) 1 year (c) 4 years (d) 2 years
26. 26.In how many years will ₹7000 earn ₹1260 simple interest at 9% per year? (a) 1 year (b) 3 years (c) 2 years (d) 4 years
27. 27.₹1000 is invested at 7% per year simple interest. What is the amount after 5 years? (a) ₹350 (b) ₹1420 (c) ₹1070 (d) ₹1350
28. 28.₹9000 is invested at 8% per year simple interest. What is the amount after 3 years? (a) ₹11880 (b) ₹2160 (c) ₹9720 (d) ₹11160
29. 29.What is the simple interest on ₹3500 at 10% per year for 2 years? (a) ₹1050 (b) ₹4200 (c) ₹700 (d) ₹350
30. 30.₹9000 is invested at 2% per year simple interest. What is the amount after 5 years? (a) ₹10080 (b) ₹9180 (c) ₹9900 (d) ₹900
31. 31.₹3000 is invested at 6% per year simple interest. What is the amount after 3 years? (a) ₹3720 (b) ₹540 (c) ₹3540 (d) ₹3180
32. 32.₹4500 is invested at 3% per year simple interest. What is the amount after 3 years? (a) ₹5040 (b) ₹405 (c) ₹4635 (d) ₹4905
33. 33.₹3000 is invested at 4% per year simple interest. What is the amount after 3 years? (a) ₹3360 (b) ₹3480 (c) ₹3120 (d) ₹360
34. 34.What is the simple interest on ₹10000 at 2% per year for 2 years? (a) ₹10400 (b) ₹600 (c) ₹400 (d) ₹200
35. 35.The simple interest on ₹1500 for 4 years is ₹240. What is the rate per year? (a) 3% (b) 5% (c) 16% (d) 4%
36. 36.₹1500 is invested at 10% per year simple interest. What is the amount after 3 years? (a) ₹1950 (b) ₹1650 (c) ₹2100 (d) ₹450
37. 37.₹1000 is invested at 11% per year simple interest. What is the amount after 3 years? (a) ₹330 (b) ₹1440 (c) ₹1330 (d) ₹1110
38. 38.In how many years will ₹3500 earn ₹420 simple interest at 6% per year? (a) 4 years (b) 3 years (c) 1 year (d) 2 years
39. 39.₹2000 is invested at 3% per year simple interest. What is the amount after 3 years? (a) ₹180 (b) ₹2240 (c) ₹2180 (d) ₹2060
40. 40.What is the simple interest on ₹2500 at 2% per year for 4 years? (a) ₹250 (b) ₹50 (c) ₹2700 (d) ₹200

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