Simple Interest Worksheet for Maths Olympiad

Maths Olympiad topic 16: Simple interest · Set 982 · 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 ₹8000 earn ₹960 simple interest at 6% per year? (a) 2 years (b) 1 year (c) 3 years (d) 4 years
2. 2.₹5000 is invested at 9% per year simple interest. What is the amount after 3 years? (a) ₹5450 (b) ₹6350 (c) ₹1350 (d) ₹6800
3. 3.The simple interest on ₹9000 for 3 years is ₹1080. What is the rate per year? (a) 5% (b) 4% (c) 3% (d) 12%
4. 4.The simple interest on ₹3000 for 4 years is ₹240. What is the rate per year? (a) 3% (b) 8% (c) 2% (d) 1%
5. 5.What is the simple interest on ₹9500 at 6% per year for 3 years? (a) ₹570 (b) ₹1710 (c) ₹2280 (d) ₹11210
6. 6.In how many years will ₹4500 earn ₹450 simple interest at 5% per year? (a) 1 year (b) 2 years (c) 4 years (d) 3 years
7. 7.₹9000 is invested at 6% per year simple interest. What is the amount after 5 years? (a) ₹9540 (b) ₹11700 (c) ₹2700 (d) ₹12240
8. 8.In how many years will ₹2000 earn ₹900 simple interest at 9% per year? (a) 5 years (b) 6 years (c) 4 years (d) 10 years
9. 9.₹1000 is invested at 10% per year simple interest. What is the amount after 2 years? (a) ₹1200 (b) ₹200 (c) ₹1300 (d) ₹1100
10. 10.₹5500 is invested at 7% per year simple interest. What is the amount after 4 years? (a) ₹7040 (b) ₹7425 (c) ₹5885 (d) ₹1540
11. 11.What is the simple interest on ₹5500 at 12% per year for 4 years? (a) ₹660 (b) ₹3300 (c) ₹2640 (d) ₹8140
12. 12.In how many years will ₹9500 earn ₹2280 simple interest at 12% per year? (a) 2 years (b) 1 year (c) 3 years (d) 4 years
13. 13.In how many years will ₹4500 earn ₹1575 simple interest at 7% per year? (a) 10 years (b) 4 years (c) 5 years (d) 6 years
14. 14.₹8000 is invested at 11% per year simple interest. What is the amount after 3 years? (a) ₹8880 (b) ₹11520 (c) ₹2640 (d) ₹10640
15. 15.The simple interest on ₹2500 for 4 years is ₹1100. What is the rate per year? (a) 10% (b) 11% (c) 12% (d) 44%
16. 16.In how many years will ₹7500 earn ₹3600 simple interest at 12% per year? (a) 5 years (b) 4 years (c) 3 years (d) 8 years
17. 17.In how many years will ₹1000 earn ₹90 simple interest at 3% per year? (a) 6 years (b) 4 years (c) 3 years (d) 2 years
18. 18.The simple interest on ₹6000 for 5 years is ₹3600. What is the rate per year? (a) 11% (b) 12% (c) 13% (d) 60%
19. 19.What is the simple interest on ₹2000 at 11% per year for 4 years? (a) ₹220 (b) ₹1100 (c) ₹880 (d) ₹2880
20. 20.₹7500 is invested at 11% per year simple interest. What is the amount after 2 years? (a) ₹8325 (b) ₹1650 (c) ₹9975 (d) ₹9150
21. 21.What is the simple interest on ₹3500 at 9% per year for 5 years? (a) ₹315 (b) ₹5075 (c) ₹1890 (d) ₹1575
22. 22.The simple interest on ₹7000 for 2 years is ₹980. What is the rate per year? (a) 6% (b) 7% (c) 8% (d) 14%
23. 23.What is the simple interest on ₹8000 at 6% per year for 4 years? (a) ₹480 (b) ₹9920 (c) ₹2400 (d) ₹1920
24. 24.What is the simple interest on ₹5500 at 2% per year for 4 years? (a) ₹5940 (b) ₹550 (c) ₹440 (d) ₹110
25. 25.In how many years will ₹8000 earn ₹2640 simple interest at 11% per year? (a) 3 years (b) 4 years (c) 2 years (d) 6 years
26. 26.What is the simple interest on ₹6000 at 12% per year for 4 years? (a) ₹3600 (b) ₹8880 (c) ₹2880 (d) ₹720
27. 27.The simple interest on ₹8000 for 5 years is ₹2400. What is the rate per year? (a) 5% (b) 6% (c) 7% (d) 30%
28. 28.The simple interest on ₹1500 for 3 years is ₹540. What is the rate per year? (a) 36% (b) 13% (c) 11% (d) 12%
29. 29.₹10000 is invested at 12% per year simple interest. What is the amount after 2 years? (a) ₹2400 (b) ₹11200 (c) ₹13600 (d) ₹12400
30. 30.₹8000 is invested at 3% per year simple interest. What is the amount after 2 years? (a) ₹8720 (b) ₹8480 (c) ₹480 (d) ₹8240
31. 31.₹9000 is invested at 6% per year simple interest. What is the amount after 3 years? (a) ₹10620 (b) ₹11160 (c) ₹9540 (d) ₹1620
32. 32.The simple interest on ₹2000 for 5 years is ₹700. What is the rate per year? (a) 6% (b) 35% (c) 7% (d) 8%
33. 33.₹8500 is invested at 12% per year simple interest. What is the amount after 2 years? (a) ₹2040 (b) ₹10540 (c) ₹9520 (d) ₹11560
34. 34.The simple interest on ₹5500 for 3 years is ₹1650. What is the rate per year? (a) 30% (b) 9% (c) 11% (d) 10%
35. 35.What is the simple interest on ₹3000 at 2% per year for 4 years? (a) ₹3240 (b) ₹240 (c) ₹300 (d) ₹60
36. 36.What is the simple interest on ₹9500 at 11% per year for 3 years? (a) ₹1045 (b) ₹12635 (c) ₹4180 (d) ₹3135
37. 37.₹2000 is invested at 2% per year simple interest. What is the amount after 3 years? (a) ₹120 (b) ₹2160 (c) ₹2120 (d) ₹2040
38. 38.In how many years will ₹2500 earn ₹1125 simple interest at 9% per year? (a) 10 years (b) 5 years (c) 4 years (d) 6 years
39. 39.The simple interest on ₹2000 for 4 years is ₹320. What is the rate per year? (a) 16% (b) 4% (c) 5% (d) 3%
40. 40.The simple interest on ₹3000 for 4 years is ₹720. What is the rate per year? (a) 7% (b) 5% (c) 6% (d) 24%

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