Simple Interest Worksheet for Maths Olympiad

Maths Olympiad topic 16: Simple interest · Set 602 · 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 ₹3500 for 3 years is ₹315. What is the rate per year? (a) 2% (b) 9% (c) 3% (d) 4%
2. 2.₹2000 is invested at 8% per year simple interest. What is the amount after 3 years? (a) ₹2480 (b) ₹480 (c) ₹2640 (d) ₹2160
3. 3.The simple interest on ₹8000 for 4 years is ₹3520. What is the rate per year? (a) 44% (b) 10% (c) 12% (d) 11%
4. 4.The simple interest on ₹1500 for 3 years is ₹90. What is the rate per year? (a) 6% (b) 3% (c) 1% (d) 2%
5. 5.₹1000 is invested at 5% per year simple interest. What is the amount after 2 years? (a) ₹100 (b) ₹1100 (c) ₹1150 (d) ₹1050
6. 6.₹6500 is invested at 11% per year simple interest. What is the amount after 3 years? (a) ₹8645 (b) ₹2145 (c) ₹7215 (d) ₹9360
7. 7.In how many years will ₹2500 earn ₹500 simple interest at 5% per year? (a) 8 years (b) 5 years (c) 3 years (d) 4 years
8. 8.The simple interest on ₹3000 for 4 years is ₹360. What is the rate per year? (a) 2% (b) 3% (c) 12% (d) 4%
9. 9.What is the simple interest on ₹3000 at 10% per year for 4 years? (a) ₹4200 (b) ₹1500 (c) ₹1200 (d) ₹300
10. 10.₹7500 is invested at 3% per year simple interest. What is the amount after 2 years? (a) ₹450 (b) ₹7950 (c) ₹8175 (d) ₹7725
11. 11.In how many years will ₹2000 earn ₹200 simple interest at 2% per year? (a) 10 years (b) 5 years (c) 4 years (d) 6 years
12. 12.The simple interest on ₹1500 for 2 years is ₹240. What is the rate per year? (a) 7% (b) 9% (c) 8% (d) 16%
13. 13.In how many years will ₹6000 earn ₹1620 simple interest at 9% per year? (a) 6 years (b) 4 years (c) 3 years (d) 2 years
14. 14.In how many years will ₹8500 earn ₹510 simple interest at 3% per year? (a) 1 year (b) 2 years (c) 4 years (d) 3 years
15. 15.₹8500 is invested at 2% per year simple interest. What is the amount after 3 years? (a) ₹8670 (b) ₹9180 (c) ₹510 (d) ₹9010
16. 16.The simple interest on ₹7500 for 4 years is ₹2400. What is the rate per year? (a) 32% (b) 7% (c) 8% (d) 9%
17. 17.₹7500 is invested at 8% per year simple interest. What is the amount after 3 years? (a) ₹9900 (b) ₹1800 (c) ₹8100 (d) ₹9300
18. 18.In how many years will ₹2500 earn ₹375 simple interest at 3% per year? (a) 10 years (b) 4 years (c) 6 years (d) 5 years
19. 19.What is the simple interest on ₹2500 at 4% per year for 5 years? (a) ₹3000 (b) ₹500 (c) ₹100 (d) ₹600
20. 20.₹6000 is invested at 11% per year simple interest. What is the amount after 3 years? (a) ₹1980 (b) ₹8640 (c) ₹6660 (d) ₹7980
21. 21.₹6500 is invested at 7% per year simple interest. What is the amount after 5 years? (a) ₹6955 (b) ₹2275 (c) ₹8775 (d) ₹9230
22. 22.The simple interest on ₹8500 for 5 years is ₹3825. What is the rate per year? (a) 9% (b) 8% (c) 45% (d) 10%
23. 23.₹9000 is invested at 11% per year simple interest. What is the amount after 4 years? (a) ₹3960 (b) ₹9990 (c) ₹13950 (d) ₹12960
24. 24.In how many years will ₹5000 earn ₹1100 simple interest at 11% per year? (a) 2 years (b) 3 years (c) 1 year (d) 4 years
25. 25.What is the simple interest on ₹8000 at 4% per year for 4 years? (a) ₹9280 (b) ₹1600 (c) ₹1280 (d) ₹320
26. 26.In how many years will ₹6000 earn ₹3000 simple interest at 10% per year? (a) 10 years (b) 6 years (c) 5 years (d) 4 years
27. 27.What is the simple interest on ₹6000 at 2% per year for 4 years? (a) ₹6480 (b) ₹600 (c) ₹480 (d) ₹120
28. 28.In how many years will ₹4500 earn ₹540 simple interest at 4% per year? (a) 3 years (b) 2 years (c) 4 years (d) 6 years
29. 29.In how many years will ₹1500 earn ₹420 simple interest at 7% per year? (a) 8 years (b) 3 years (c) 5 years (d) 4 years
30. 30.What is the simple interest on ₹7000 at 8% per year for 4 years? (a) ₹9240 (b) ₹2800 (c) ₹2240 (d) ₹560
31. 31.The simple interest on ₹2500 for 2 years is ₹400. What is the rate per year? (a) 7% (b) 8% (c) 9% (d) 16%
32. 32.The simple interest on ₹5500 for 3 years is ₹1980. What is the rate per year? (a) 13% (b) 11% (c) 36% (d) 12%
33. 33.In how many years will ₹9500 earn ₹1900 simple interest at 10% per year? (a) 1 year (b) 4 years (c) 3 years (d) 2 years
34. 34.₹3500 is invested at 8% per year simple interest. What is the amount after 3 years? (a) ₹3780 (b) ₹4620 (c) ₹840 (d) ₹4340
35. 35.What is the simple interest on ₹7500 at 3% per year for 2 years? (a) ₹450 (b) ₹7950 (c) ₹225 (d) ₹675
36. 36.What is the simple interest on ₹6000 at 3% per year for 2 years? (a) ₹180 (b) ₹540 (c) ₹6360 (d) ₹360
37. 37.₹2000 is invested at 12% per year simple interest. What is the amount after 2 years? (a) ₹480 (b) ₹2720 (c) ₹2240 (d) ₹2480
38. 38.₹5000 is invested at 8% per year simple interest. What is the amount after 2 years? (a) ₹6200 (b) ₹5800 (c) ₹5400 (d) ₹800
39. 39.In how many years will ₹5000 earn ₹2750 simple interest at 11% per year? (a) 4 years (b) 5 years (c) 10 years (d) 6 years
40. 40.In how many years will ₹8000 earn ₹480 simple interest at 3% per year? (a) 3 years (b) 1 year (c) 4 years (d) 2 years

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