Simple Interest Worksheet for Maths Olympiad

Maths Olympiad topic 16: Simple interest · Set 67 · 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 ₹2500 earn ₹250 simple interest at 5% per year? (a) 3 years (b) 4 years (c) 2 years (d) 1 year
2. 2.₹4500 is invested at 7% per year simple interest. What is the amount after 5 years? (a) ₹4815 (b) ₹6075 (c) ₹6390 (d) ₹1575
3. 3.₹3000 is invested at 7% per year simple interest. What is the amount after 3 years? (a) ₹3840 (b) ₹3210 (c) ₹630 (d) ₹3630
4. 4.In how many years will ₹7500 earn ₹4125 simple interest at 11% per year? (a) 6 years (b) 4 years (c) 5 years (d) 10 years
5. 5.What is the simple interest on ₹2500 at 10% per year for 3 years? (a) ₹250 (b) ₹1000 (c) ₹750 (d) ₹3250
6. 6.The simple interest on ₹9500 for 3 years is ₹2565. What is the rate per year? (a) 27% (b) 9% (c) 8% (d) 10%
7. 7.What is the simple interest on ₹4500 at 4% per year for 2 years? (a) ₹180 (b) ₹360 (c) ₹4860 (d) ₹540
8. 8.₹9500 is invested at 5% per year simple interest. What is the amount after 3 years? (a) ₹9975 (b) ₹11400 (c) ₹10925 (d) ₹1425
9. 9.What is the simple interest on ₹7500 at 10% per year for 3 years? (a) ₹750 (b) ₹3000 (c) ₹2250 (d) ₹9750
10. 10.What is the simple interest on ₹4000 at 12% per year for 5 years? (a) ₹480 (b) ₹6400 (c) ₹2400 (d) ₹2880
11. 11.In how many years will ₹4000 earn ₹720 simple interest at 9% per year? (a) 4 years (b) 1 year (c) 3 years (d) 2 years
12. 12.What is the simple interest on ₹8000 at 4% per year for 3 years? (a) ₹960 (b) ₹320 (c) ₹8960 (d) ₹1280
13. 13.What is the simple interest on ₹9500 at 7% per year for 3 years? (a) ₹665 (b) ₹2660 (c) ₹1995 (d) ₹11495
14. 14.The simple interest on ₹4000 for 4 years is ₹640. What is the rate per year? (a) 4% (b) 3% (c) 16% (d) 5%
15. 15.The simple interest on ₹2500 for 2 years is ₹250. What is the rate per year? (a) 4% (b) 10% (c) 5% (d) 6%
16. 16.₹3500 is invested at 4% per year simple interest. What is the amount after 3 years? (a) ₹3640 (b) ₹3920 (c) ₹4060 (d) ₹420
17. 17.What is the simple interest on ₹9000 at 11% per year for 4 years? (a) ₹3960 (b) ₹990 (c) ₹4950 (d) ₹12960
18. 18.₹6000 is invested at 6% per year simple interest. What is the amount after 2 years? (a) ₹7080 (b) ₹720 (c) ₹6720 (d) ₹6360
19. 19.₹3000 is invested at 8% per year simple interest. What is the amount after 2 years? (a) ₹3480 (b) ₹3240 (c) ₹480 (d) ₹3720
20. 20.₹2500 is invested at 3% per year simple interest. What is the amount after 2 years? (a) ₹150 (b) ₹2650 (c) ₹2575 (d) ₹2725
21. 21.In how many years will ₹4000 earn ₹400 simple interest at 5% per year? (a) 3 years (b) 2 years (c) 4 years (d) 1 year
22. 22.The simple interest on ₹9500 for 5 years is ₹4750. What is the rate per year? (a) 50% (b) 10% (c) 11% (d) 9%
23. 23.What is the simple interest on ₹6000 at 10% per year for 5 years? (a) ₹9000 (b) ₹600 (c) ₹3000 (d) ₹3600
24. 24.In how many years will ₹2000 earn ₹360 simple interest at 9% per year? (a) 1 year (b) 4 years (c) 3 years (d) 2 years
25. 25.What is the simple interest on ₹2500 at 8% per year for 2 years? (a) ₹600 (b) ₹2900 (c) ₹200 (d) ₹400
26. 26.In how many years will ₹6000 earn ₹960 simple interest at 8% per year? (a) 3 years (b) 1 year (c) 4 years (d) 2 years
27. 27.The simple interest on ₹6500 for 3 years is ₹585. What is the rate per year? (a) 9% (b) 3% (c) 2% (d) 4%
28. 28.The simple interest on ₹1000 for 2 years is ₹140. What is the rate per year? (a) 14% (b) 8% (c) 7% (d) 6%
29. 29.What is the simple interest on ₹4500 at 2% per year for 5 years? (a) ₹450 (b) ₹90 (c) ₹540 (d) ₹4950
30. 30.What is the simple interest on ₹1000 at 12% per year for 4 years? (a) ₹1480 (b) ₹120 (c) ₹600 (d) ₹480
31. 31.In how many years will ₹1500 earn ₹315 simple interest at 7% per year? (a) 6 years (b) 4 years (c) 2 years (d) 3 years
32. 32.₹5500 is invested at 11% per year simple interest. What is the amount after 2 years? (a) ₹1210 (b) ₹7315 (c) ₹6105 (d) ₹6710
33. 33.The simple interest on ₹2000 for 5 years is ₹1000. What is the rate per year? (a) 50% (b) 11% (c) 9% (d) 10%
34. 34.The simple interest on ₹10000 for 4 years is ₹800. What is the rate per year? (a) 2% (b) 8% (c) 3% (d) 1%
35. 35.The simple interest on ₹2000 for 3 years is ₹120. What is the rate per year? (a) 6% (b) 3% (c) 2% (d) 1%
36. 36.The simple interest on ₹9500 for 2 years is ₹950. What is the rate per year? (a) 4% (b) 6% (c) 10% (d) 5%
37. 37.₹6500 is invested at 2% per year simple interest. What is the amount after 4 years? (a) ₹6630 (b) ₹520 (c) ₹7020 (d) ₹7150
38. 38.The simple interest on ₹2000 for 4 years is ₹320. What is the rate per year? (a) 5% (b) 3% (c) 4% (d) 16%
39. 39.What is the simple interest on ₹6500 at 11% per year for 5 years? (a) ₹10075 (b) ₹3575 (c) ₹4290 (d) ₹715
40. 40.₹7000 is invested at 12% per year simple interest. What is the amount after 3 years? (a) ₹10360 (b) ₹7840 (c) ₹9520 (d) ₹2520

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