Simple Interest Worksheet for Maths Olympiad

Maths Olympiad topic 16: Simple interest · Set 171 · 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 ₹640 simple interest at 8% per year? (a) 3 years (b) 4 years (c) 5 years (d) 8 years
2. 2.The simple interest on ₹7500 for 5 years is ₹3000. What is the rate per year? (a) 40% (b) 8% (c) 9% (d) 7%
3. 3.₹9000 is invested at 12% per year simple interest. What is the amount after 2 years? (a) ₹10080 (b) ₹12240 (c) ₹11160 (d) ₹2160
4. 4.₹7500 is invested at 6% per year simple interest. What is the amount after 3 years? (a) ₹7950 (b) ₹8850 (c) ₹9300 (d) ₹1350
5. 5.What is the simple interest on ₹6500 at 7% per year for 2 years? (a) ₹7410 (b) ₹1365 (c) ₹455 (d) ₹910
6. 6.In how many years will ₹4000 earn ₹480 simple interest at 3% per year? (a) 3 years (b) 5 years (c) 8 years (d) 4 years
7. 7.In how many years will ₹5500 earn ₹2200 simple interest at 8% per year? (a) 6 years (b) 5 years (c) 4 years (d) 10 years
8. 8.₹2000 is invested at 4% per year simple interest. What is the amount after 2 years? (a) ₹160 (b) ₹2240 (c) ₹2160 (d) ₹2080
9. 9.₹5500 is invested at 3% per year simple interest. What is the amount after 2 years? (a) ₹5830 (b) ₹5665 (c) ₹5995 (d) ₹330
10. 10.In how many years will ₹3500 earn ₹280 simple interest at 4% per year? (a) 4 years (b) 1 year (c) 3 years (d) 2 years
11. 11.What is the simple interest on ₹4500 at 3% per year for 2 years? (a) ₹135 (b) ₹4770 (c) ₹405 (d) ₹270
12. 12.What is the simple interest on ₹6000 at 10% per year for 3 years? (a) ₹7800 (b) ₹2400 (c) ₹1800 (d) ₹600
13. 13.₹2500 is invested at 10% per year simple interest. What is the amount after 3 years? (a) ₹3250 (b) ₹2750 (c) ₹750 (d) ₹3500
14. 14.In how many years will ₹6500 earn ₹1820 simple interest at 7% per year? (a) 8 years (b) 3 years (c) 4 years (d) 5 years
15. 15.What is the simple interest on ₹7500 at 2% per year for 4 years? (a) ₹750 (b) ₹600 (c) ₹150 (d) ₹8100
16. 16.The simple interest on ₹8500 for 5 years is ₹2975. What is the rate per year? (a) 35% (b) 6% (c) 8% (d) 7%
17. 17.₹8500 is invested at 2% per year simple interest. What is the amount after 3 years? (a) ₹9180 (b) ₹8670 (c) ₹510 (d) ₹9010
18. 18.In how many years will ₹1000 earn ₹90 simple interest at 3% per year? (a) 2 years (b) 3 years (c) 6 years (d) 4 years
19. 19.What is the simple interest on ₹3000 at 10% per year for 2 years? (a) ₹900 (b) ₹3600 (c) ₹300 (d) ₹600
20. 20.The simple interest on ₹2500 for 3 years is ₹825. What is the rate per year? (a) 11% (b) 33% (c) 12% (d) 10%
21. 21.What is the simple interest on ₹8500 at 12% per year for 3 years? (a) ₹1020 (b) ₹4080 (c) ₹11560 (d) ₹3060
22. 22.The simple interest on ₹7000 for 2 years is ₹280. What is the rate per year? (a) 3% (b) 4% (c) 1% (d) 2%
23. 23.In how many years will ₹9000 earn ₹1620 simple interest at 9% per year? (a) 3 years (b) 1 year (c) 4 years (d) 2 years
24. 24.What is the simple interest on ₹3500 at 5% per year for 3 years? (a) ₹4025 (b) ₹175 (c) ₹700 (d) ₹525
25. 25.In how many years will ₹2000 earn ₹1100 simple interest at 11% per year? (a) 6 years (b) 5 years (c) 10 years (d) 4 years
26. 26.What is the simple interest on ₹7500 at 12% per year for 4 years? (a) ₹900 (b) ₹11100 (c) ₹3600 (d) ₹4500
27. 27.The simple interest on ₹8000 for 2 years is ₹1920. What is the rate per year? (a) 24% (b) 13% (c) 11% (d) 12%
28. 28.What is the simple interest on ₹5000 at 11% per year for 3 years? (a) ₹6650 (b) ₹550 (c) ₹1650 (d) ₹2200
29. 29.In how many years will ₹6500 earn ₹1430 simple interest at 11% per year? (a) 3 years (b) 2 years (c) 1 year (d) 4 years
30. 30.₹3500 is invested at 9% per year simple interest. What is the amount after 4 years? (a) ₹3815 (b) ₹4760 (c) ₹5075 (d) ₹1260
31. 31.In how many years will ₹3000 earn ₹540 simple interest at 6% per year? (a) 4 years (b) 6 years (c) 2 years (d) 3 years
32. 32.What is the simple interest on ₹5000 at 9% per year for 2 years? (a) ₹5900 (b) ₹450 (c) ₹1350 (d) ₹900
33. 33.The simple interest on ₹3000 for 5 years is ₹750. What is the rate per year? (a) 25% (b) 4% (c) 6% (d) 5%
34. 34.₹4500 is invested at 2% per year simple interest. What is the amount after 2 years? (a) ₹180 (b) ₹4590 (c) ₹4770 (d) ₹4680
35. 35.What is the simple interest on ₹2500 at 8% per year for 3 years? (a) ₹200 (b) ₹800 (c) ₹3100 (d) ₹600
36. 36.What is the simple interest on ₹3000 at 9% per year for 4 years? (a) ₹1350 (b) ₹270 (c) ₹4080 (d) ₹1080
37. 37.₹10000 is invested at 2% per year simple interest. What is the amount after 3 years? (a) ₹10800 (b) ₹10600 (c) ₹10200 (d) ₹600
38. 38.The simple interest on ₹8000 for 5 years is ₹4000. What is the rate per year? (a) 9% (b) 50% (c) 10% (d) 11%
39. 39.The simple interest on ₹7500 for 2 years is ₹1050. What is the rate per year? (a) 14% (b) 6% (c) 7% (d) 8%
40. 40.The simple interest on ₹3000 for 2 years is ₹360. What is the rate per year? (a) 7% (b) 6% (c) 5% (d) 12%

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