Simple Interest Worksheet for Maths Olympiad

Maths Olympiad topic 16: Simple interest · Set 626 · 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.₹10000 is invested at 8% per year simple interest. What is the amount after 2 years? (a) ₹12400 (b) ₹11600 (c) ₹1600 (d) ₹10800
2. 2.In how many years will ₹3500 earn ₹315 simple interest at 3% per year? (a) 4 years (b) 2 years (c) 3 years (d) 6 years
3. 3.The simple interest on ₹2000 for 2 years is ₹480. What is the rate per year? (a) 11% (b) 24% (c) 12% (d) 13%
4. 4.₹3500 is invested at 12% per year simple interest. What is the amount after 4 years? (a) ₹3920 (b) ₹5600 (c) ₹5180 (d) ₹1680
5. 5.The simple interest on ₹4500 for 5 years is ₹2025. What is the rate per year? (a) 10% (b) 45% (c) 8% (d) 9%
6. 6.What is the simple interest on ₹2500 at 8% per year for 4 years? (a) ₹1000 (b) ₹200 (c) ₹800 (d) ₹3300
7. 7.What is the simple interest on ₹7000 at 3% per year for 4 years? (a) ₹1050 (b) ₹840 (c) ₹210 (d) ₹7840
8. 8.₹9500 is invested at 11% per year simple interest. What is the amount after 5 years? (a) ₹5225 (b) ₹10545 (c) ₹14725 (d) ₹15770
9. 9.In how many years will ₹9500 earn ₹3040 simple interest at 8% per year? (a) 4 years (b) 3 years (c) 8 years (d) 5 years
10. 10.The simple interest on ₹3000 for 3 years is ₹360. What is the rate per year? (a) 4% (b) 3% (c) 12% (d) 5%
11. 11.The simple interest on ₹8000 for 4 years is ₹960. What is the rate per year? (a) 12% (b) 2% (c) 3% (d) 4%
12. 12.The simple interest on ₹1500 for 2 years is ₹300. What is the rate per year? (a) 10% (b) 11% (c) 20% (d) 9%
13. 13.₹5000 is invested at 2% per year simple interest. What is the amount after 4 years? (a) ₹5500 (b) ₹400 (c) ₹5400 (d) ₹5100
14. 14.What is the simple interest on ₹7500 at 4% per year for 2 years? (a) ₹300 (b) ₹8100 (c) ₹600 (d) ₹900
15. 15.What is the simple interest on ₹3000 at 11% per year for 2 years? (a) ₹3660 (b) ₹330 (c) ₹660 (d) ₹990
16. 16.₹6000 is invested at 8% per year simple interest. What is the amount after 5 years? (a) ₹8880 (b) ₹8400 (c) ₹2400 (d) ₹6480
17. 17.What is the simple interest on ₹4500 at 4% per year for 2 years? (a) ₹180 (b) ₹4860 (c) ₹540 (d) ₹360
18. 18.What is the simple interest on ₹2500 at 4% per year for 2 years? (a) ₹2700 (b) ₹100 (c) ₹300 (d) ₹200
19. 19.The simple interest on ₹9000 for 5 years is ₹1350. What is the rate per year? (a) 15% (b) 2% (c) 3% (d) 4%
20. 20.The simple interest on ₹4000 for 2 years is ₹400. What is the rate per year? (a) 4% (b) 5% (c) 10% (d) 6%
21. 21.What is the simple interest on ₹4500 at 2% per year for 5 years? (a) ₹90 (b) ₹540 (c) ₹450 (d) ₹4950
22. 22.In how many years will ₹9000 earn ₹1440 simple interest at 4% per year? (a) 4 years (b) 3 years (c) 5 years (d) 8 years
23. 23.The simple interest on ₹1500 for 3 years is ₹270. What is the rate per year? (a) 6% (b) 18% (c) 7% (d) 5%
24. 24.In how many years will ₹3000 earn ₹480 simple interest at 4% per year? (a) 5 years (b) 4 years (c) 3 years (d) 8 years
25. 25.The simple interest on ₹4000 for 4 years is ₹1440. What is the rate per year? (a) 9% (b) 36% (c) 8% (d) 10%
26. 26.In how many years will ₹8500 earn ₹850 simple interest at 5% per year? (a) 3 years (b) 2 years (c) 1 year (d) 4 years
27. 27.What is the simple interest on ₹4000 at 6% per year for 2 years? (a) ₹720 (b) ₹240 (c) ₹480 (d) ₹4480
28. 28.The simple interest on ₹6000 for 2 years is ₹600. What is the rate per year? (a) 6% (b) 4% (c) 10% (d) 5%
29. 29.In how many years will ₹6000 earn ₹240 simple interest at 2% per year? (a) 3 years (b) 1 year (c) 4 years (d) 2 years
30. 30.₹4000 is invested at 9% per year simple interest. What is the amount after 2 years? (a) ₹5080 (b) ₹4720 (c) ₹4360 (d) ₹720
31. 31.In how many years will ₹3500 earn ₹1155 simple interest at 11% per year? (a) 6 years (b) 2 years (c) 3 years (d) 4 years
32. 32.What is the simple interest on ₹6500 at 9% per year for 4 years? (a) ₹585 (b) ₹2925 (c) ₹2340 (d) ₹8840
33. 33.The simple interest on ₹6000 for 2 years is ₹1440. What is the rate per year? (a) 13% (b) 24% (c) 11% (d) 12%
34. 34.₹3000 is invested at 4% per year simple interest. What is the amount after 3 years? (a) ₹3360 (b) ₹3480 (c) ₹360 (d) ₹3120
35. 35.The simple interest on ₹3500 for 4 years is ₹1540. What is the rate per year? (a) 12% (b) 44% (c) 11% (d) 10%
36. 36.₹9000 is invested at 8% per year simple interest. What is the amount after 3 years? (a) ₹11160 (b) ₹2160 (c) ₹9720 (d) ₹11880
37. 37.The simple interest on ₹2000 for 4 years is ₹640. What is the rate per year? (a) 9% (b) 8% (c) 32% (d) 7%
38. 38.The simple interest on ₹6000 for 3 years is ₹1440. What is the rate per year? (a) 24% (b) 7% (c) 9% (d) 8%
39. 39.What is the simple interest on ₹7000 at 4% per year for 5 years? (a) ₹280 (b) ₹1680 (c) ₹8400 (d) ₹1400
40. 40.In how many years will ₹6500 earn ₹585 simple interest at 3% per year? (a) 4 years (b) 2 years (c) 3 years (d) 6 years

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