Simple Interest Worksheet for Maths Olympiad

Maths Olympiad topic 16: Simple interest · Set 446 · 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 ₹10000 for 5 years is ₹2000. What is the rate per year? (a) 20% (b) 5% (c) 4% (d) 3%
2. 2.₹1500 is invested at 8% per year simple interest. What is the amount after 4 years? (a) ₹1620 (b) ₹480 (c) ₹1980 (d) ₹2100
3. 3.What is the simple interest on ₹5500 at 7% per year for 3 years? (a) ₹6655 (b) ₹1540 (c) ₹1155 (d) ₹385
4. 4.The simple interest on ₹2500 for 3 years is ₹225. What is the rate per year? (a) 2% (b) 9% (c) 4% (d) 3%
5. 5.In how many years will ₹3500 earn ₹735 simple interest at 7% per year? (a) 2 years (b) 4 years (c) 3 years (d) 6 years
6. 6.₹9500 is invested at 4% per year simple interest. What is the amount after 5 years? (a) ₹1900 (b) ₹9880 (c) ₹11780 (d) ₹11400
7. 7.₹4500 is invested at 3% per year simple interest. What is the amount after 4 years? (a) ₹5040 (b) ₹540 (c) ₹4635 (d) ₹5175
8. 8.What is the simple interest on ₹2500 at 8% per year for 2 years? (a) ₹400 (b) ₹600 (c) ₹200 (d) ₹2900
9. 9.₹7000 is invested at 12% per year simple interest. What is the amount after 5 years? (a) ₹7840 (b) ₹12040 (c) ₹4200 (d) ₹11200
10. 10.₹9000 is invested at 12% per year simple interest. What is the amount after 5 years? (a) ₹10080 (b) ₹15480 (c) ₹14400 (d) ₹5400
11. 11.In how many years will ₹6500 earn ₹1365 simple interest at 7% per year? (a) 6 years (b) 2 years (c) 4 years (d) 3 years
12. 12.What is the simple interest on ₹7000 at 2% per year for 4 years? (a) ₹560 (b) ₹7560 (c) ₹700 (d) ₹140
13. 13.The simple interest on ₹7000 for 4 years is ₹2520. What is the rate per year? (a) 10% (b) 9% (c) 36% (d) 8%
14. 14.What is the simple interest on ₹10000 at 7% per year for 3 years? (a) ₹2800 (b) ₹12100 (c) ₹700 (d) ₹2100
15. 15.What is the simple interest on ₹7500 at 9% per year for 3 years? (a) ₹2025 (b) ₹9525 (c) ₹675 (d) ₹2700
16. 16.₹6000 is invested at 5% per year simple interest. What is the amount after 5 years? (a) ₹1500 (b) ₹7500 (c) ₹7800 (d) ₹6300
17. 17.The simple interest on ₹2000 for 4 years is ₹880. What is the rate per year? (a) 44% (b) 12% (c) 10% (d) 11%
18. 18.What is the simple interest on ₹10000 at 4% per year for 5 years? (a) ₹2000 (b) ₹2400 (c) ₹400 (d) ₹12000
19. 19.In how many years will ₹8500 earn ₹2295 simple interest at 9% per year? (a) 2 years (b) 6 years (c) 4 years (d) 3 years
20. 20.The simple interest on ₹2500 for 3 years is ₹750. What is the rate per year? (a) 10% (b) 30% (c) 11% (d) 9%
21. 21.What is the simple interest on ₹4500 at 2% per year for 2 years? (a) ₹4680 (b) ₹180 (c) ₹270 (d) ₹90
22. 22.The simple interest on ₹5000 for 4 years is ₹1000. What is the rate per year? (a) 6% (b) 20% (c) 5% (d) 4%
23. 23.The simple interest on ₹10000 for 2 years is ₹600. What is the rate per year? (a) 2% (b) 6% (c) 3% (d) 4%
24. 24.In how many years will ₹6000 earn ₹1620 simple interest at 9% per year? (a) 6 years (b) 2 years (c) 4 years (d) 3 years
25. 25.The simple interest on ₹9500 for 5 years is ₹2375. What is the rate per year? (a) 4% (b) 25% (c) 5% (d) 6%
26. 26.₹6500 is invested at 8% per year simple interest. What is the amount after 3 years? (a) ₹1560 (b) ₹8060 (c) ₹7020 (d) ₹8580
27. 27.₹5000 is invested at 12% per year simple interest. What is the amount after 3 years? (a) ₹5600 (b) ₹6800 (c) ₹7400 (d) ₹1800
28. 28.What is the simple interest on ₹4500 at 11% per year for 5 years? (a) ₹2475 (b) ₹6975 (c) ₹2970 (d) ₹495
29. 29.The simple interest on ₹1500 for 5 years is ₹225. What is the rate per year? (a) 15% (b) 3% (c) 4% (d) 2%
30. 30.In how many years will ₹10000 earn ₹3000 simple interest at 6% per year? (a) 4 years (b) 10 years (c) 6 years (d) 5 years
31. 31.₹6500 is invested at 11% per year simple interest. What is the amount after 3 years? (a) ₹9360 (b) ₹2145 (c) ₹8645 (d) ₹7215
32. 32.In how many years will ₹4000 earn ₹480 simple interest at 4% per year? (a) 3 years (b) 2 years (c) 6 years (d) 4 years
33. 33.In how many years will ₹8500 earn ₹1020 simple interest at 6% per year? (a) 1 year (b) 3 years (c) 2 years (d) 4 years
34. 34.The simple interest on ₹1000 for 3 years is ₹150. What is the rate per year? (a) 6% (b) 15% (c) 5% (d) 4%
35. 35.The simple interest on ₹2500 for 5 years is ₹250. What is the rate per year? (a) 10% (b) 3% (c) 2% (d) 1%
36. 36.In how many years will ₹10000 earn ₹3200 simple interest at 8% per year? (a) 8 years (b) 4 years (c) 3 years (d) 5 years
37. 37.In how many years will ₹1500 earn ₹180 simple interest at 6% per year? (a) 2 years (b) 3 years (c) 4 years (d) 1 year
38. 38.The simple interest on ₹2500 for 4 years is ₹400. What is the rate per year? (a) 3% (b) 16% (c) 5% (d) 4%
39. 39.₹4500 is invested at 3% per year simple interest. What is the amount after 3 years? (a) ₹405 (b) ₹4635 (c) ₹4905 (d) ₹5040
40. 40.In how many years will ₹6000 earn ₹540 simple interest at 3% per year? (a) 2 years (b) 3 years (c) 4 years (d) 6 years

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