Simple Interest Worksheet for Maths Olympiad

Maths Olympiad topic 16: Simple interest · Set 106 · 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 ₹6000 for 2 years is ₹360. What is the rate per year? (a) 2% (b) 4% (c) 3% (d) 6%
2. 2.₹8000 is invested at 4% per year simple interest. What is the amount after 2 years? (a) ₹640 (b) ₹8320 (c) ₹8960 (d) ₹8640
3. 3.In how many years will ₹6500 earn ₹2145 simple interest at 11% per year? (a) 2 years (b) 4 years (c) 6 years (d) 3 years
4. 4.What is the simple interest on ₹5500 at 2% per year for 5 years? (a) ₹550 (b) ₹110 (c) ₹6050 (d) ₹660
5. 5.The simple interest on ₹10000 for 3 years is ₹900. What is the rate per year? (a) 9% (b) 2% (c) 3% (d) 4%
6. 6.The simple interest on ₹2000 for 3 years is ₹300. What is the rate per year? (a) 4% (b) 15% (c) 5% (d) 6%
7. 7.₹9000 is invested at 8% per year simple interest. What is the amount after 2 years? (a) ₹11160 (b) ₹1440 (c) ₹9720 (d) ₹10440
8. 8.What is the simple interest on ₹8000 at 11% per year for 3 years? (a) ₹3520 (b) ₹10640 (c) ₹2640 (d) ₹880
9. 9.What is the simple interest on ₹4000 at 7% per year for 2 years? (a) ₹560 (b) ₹840 (c) ₹280 (d) ₹4560
10. 10.In how many years will ₹6000 earn ₹600 simple interest at 5% per year? (a) 3 years (b) 1 year (c) 2 years (d) 4 years
11. 11.In how many years will ₹5000 earn ₹450 simple interest at 3% per year? (a) 6 years (b) 4 years (c) 3 years (d) 2 years
12. 12.₹6000 is invested at 3% per year simple interest. What is the amount after 4 years? (a) ₹6900 (b) ₹6720 (c) ₹6180 (d) ₹720
13. 13.In how many years will ₹1000 earn ₹90 simple interest at 3% per year? (a) 4 years (b) 3 years (c) 2 years (d) 6 years
14. 14.In how many years will ₹8500 earn ₹3060 simple interest at 12% per year? (a) 2 years (b) 4 years (c) 3 years (d) 6 years
15. 15.₹6500 is invested at 11% per year simple interest. What is the amount after 4 years? (a) ₹2860 (b) ₹10075 (c) ₹9360 (d) ₹7215
16. 16.₹4000 is invested at 11% per year simple interest. What is the amount after 5 years? (a) ₹4440 (b) ₹6640 (c) ₹2200 (d) ₹6200
17. 17.The simple interest on ₹8000 for 4 years is ₹1920. What is the rate per year? (a) 7% (b) 5% (c) 24% (d) 6%
18. 18.₹2500 is invested at 12% per year simple interest. What is the amount after 2 years? (a) ₹2800 (b) ₹3400 (c) ₹3100 (d) ₹600
19. 19.What is the simple interest on ₹8000 at 11% per year for 4 years? (a) ₹11520 (b) ₹3520 (c) ₹4400 (d) ₹880
20. 20.₹2500 is invested at 6% per year simple interest. What is the amount after 5 years? (a) ₹3400 (b) ₹2650 (c) ₹3250 (d) ₹750
21. 21.What is the simple interest on ₹8000 at 6% per year for 3 years? (a) ₹9440 (b) ₹1920 (c) ₹1440 (d) ₹480
22. 22.What is the simple interest on ₹9500 at 10% per year for 3 years? (a) ₹12350 (b) ₹3800 (c) ₹2850 (d) ₹950
23. 23.₹4500 is invested at 5% per year simple interest. What is the amount after 3 years? (a) ₹4725 (b) ₹5400 (c) ₹675 (d) ₹5175
24. 24.The simple interest on ₹1500 for 3 years is ₹360. What is the rate per year? (a) 9% (b) 24% (c) 8% (d) 7%
25. 25.The simple interest on ₹4500 for 3 years is ₹405. What is the rate per year? (a) 9% (b) 2% (c) 4% (d) 3%
26. 26.The simple interest on ₹3000 for 3 years is ₹630. What is the rate per year? (a) 7% (b) 8% (c) 6% (d) 21%
27. 27.₹2500 is invested at 7% per year simple interest. What is the amount after 5 years? (a) ₹875 (b) ₹3550 (c) ₹3375 (d) ₹2675
28. 28.In how many years will ₹4000 earn ₹1120 simple interest at 7% per year? (a) 4 years (b) 5 years (c) 8 years (d) 3 years
29. 29.The simple interest on ₹6500 for 2 years is ₹780. What is the rate per year? (a) 5% (b) 7% (c) 6% (d) 12%
30. 30.The simple interest on ₹3500 for 5 years is ₹1750. What is the rate per year? (a) 50% (b) 11% (c) 9% (d) 10%
31. 31.What is the simple interest on ₹1500 at 2% per year for 2 years? (a) ₹1560 (b) ₹60 (c) ₹30 (d) ₹90
32. 32.In how many years will ₹5000 earn ₹700 simple interest at 7% per year? (a) 3 years (b) 1 year (c) 2 years (d) 4 years
33. 33.In how many years will ₹10000 earn ₹900 simple interest at 3% per year? (a) 4 years (b) 2 years (c) 6 years (d) 3 years
34. 34.What is the simple interest on ₹3000 at 9% per year for 3 years? (a) ₹1080 (b) ₹810 (c) ₹270 (d) ₹3810
35. 35.What is the simple interest on ₹6500 at 12% per year for 3 years? (a) ₹3120 (b) ₹2340 (c) ₹780 (d) ₹8840
36. 36.₹8500 is invested at 3% per year simple interest. What is the amount after 5 years? (a) ₹10030 (b) ₹8755 (c) ₹9775 (d) ₹1275
37. 37.The simple interest on ₹5000 for 4 years is ₹1000. What is the rate per year? (a) 20% (b) 4% (c) 5% (d) 6%
38. 38.In how many years will ₹8000 earn ₹320 simple interest at 2% per year? (a) 4 years (b) 3 years (c) 2 years (d) 1 year
39. 39.What is the simple interest on ₹7000 at 3% per year for 2 years? (a) ₹210 (b) ₹420 (c) ₹630 (d) ₹7420
40. 40.The simple interest on ₹9000 for 3 years is ₹2160. What is the rate per year? (a) 8% (b) 7% (c) 9% (d) 24%

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