Simple Interest Worksheet for Maths Olympiad

Maths Olympiad topic 16: Simple interest · Set 940 · 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.₹8000 is invested at 4% per year simple interest. What is the amount after 4 years? (a) ₹1280 (b) ₹8320 (c) ₹9280 (d) ₹9600
2. 2.In how many years will ₹7000 earn ₹1680 simple interest at 12% per year? (a) 1 year (b) 4 years (c) 2 years (d) 3 years
3. 3.What is the simple interest on ₹2000 at 7% per year for 5 years? (a) ₹840 (b) ₹700 (c) ₹2700 (d) ₹140
4. 4.In how many years will ₹3500 earn ₹1575 simple interest at 9% per year? (a) 5 years (b) 10 years (c) 6 years (d) 4 years
5. 5.What is the simple interest on ₹4500 at 3% per year for 3 years? (a) ₹135 (b) ₹4905 (c) ₹405 (d) ₹540
6. 6.₹6500 is invested at 4% per year simple interest. What is the amount after 5 years? (a) ₹1300 (b) ₹7800 (c) ₹6760 (d) ₹8060
7. 7.What is the simple interest on ₹2500 at 11% per year for 3 years? (a) ₹825 (b) ₹3325 (c) ₹275 (d) ₹1100
8. 8.What is the simple interest on ₹7500 at 11% per year for 2 years? (a) ₹2475 (b) ₹825 (c) ₹9150 (d) ₹1650
9. 9.₹6000 is invested at 8% per year simple interest. What is the amount after 4 years? (a) ₹8400 (b) ₹6480 (c) ₹7920 (d) ₹1920
10. 10.What is the simple interest on ₹9000 at 2% per year for 3 years? (a) ₹720 (b) ₹540 (c) ₹9540 (d) ₹180
11. 11.What is the simple interest on ₹2500 at 9% per year for 4 years? (a) ₹3400 (b) ₹225 (c) ₹900 (d) ₹1125
12. 12.In how many years will ₹3500 earn ₹1540 simple interest at 11% per year? (a) 5 years (b) 8 years (c) 3 years (d) 4 years
13. 13.₹10000 is invested at 3% per year simple interest. What is the amount after 5 years? (a) ₹10300 (b) ₹11800 (c) ₹11500 (d) ₹1500
14. 14.₹9000 is invested at 12% per year simple interest. What is the amount after 2 years? (a) ₹11160 (b) ₹10080 (c) ₹2160 (d) ₹12240
15. 15.What is the simple interest on ₹7000 at 4% per year for 3 years? (a) ₹7840 (b) ₹280 (c) ₹1120 (d) ₹840
16. 16.₹7000 is invested at 5% per year simple interest. What is the amount after 5 years? (a) ₹8750 (b) ₹7350 (c) ₹9100 (d) ₹1750
17. 17.₹9000 is invested at 2% per year simple interest. What is the amount after 4 years? (a) ₹9180 (b) ₹9720 (c) ₹9900 (d) ₹720
18. 18.What is the simple interest on ₹8500 at 7% per year for 5 years? (a) ₹11475 (b) ₹3570 (c) ₹2975 (d) ₹595
19. 19.The simple interest on ₹5500 for 5 years is ₹1375. What is the rate per year? (a) 4% (b) 25% (c) 5% (d) 6%
20. 20.What is the simple interest on ₹3000 at 5% per year for 4 years? (a) ₹750 (b) ₹3600 (c) ₹600 (d) ₹150
21. 21.What is the simple interest on ₹7500 at 12% per year for 2 years? (a) ₹9300 (b) ₹2700 (c) ₹1800 (d) ₹900
22. 22.In how many years will ₹8500 earn ₹1275 simple interest at 5% per year? (a) 4 years (b) 2 years (c) 6 years (d) 3 years
23. 23.₹2500 is invested at 12% per year simple interest. What is the amount after 4 years? (a) ₹1200 (b) ₹4000 (c) ₹3700 (d) ₹2800
24. 24.In how many years will ₹3500 earn ₹210 simple interest at 3% per year? (a) 2 years (b) 1 year (c) 3 years (d) 4 years
25. 25.The simple interest on ₹9000 for 2 years is ₹1980. What is the rate per year? (a) 12% (b) 10% (c) 11% (d) 22%
26. 26.The simple interest on ₹8500 for 4 years is ₹680. What is the rate per year? (a) 2% (b) 8% (c) 1% (d) 3%
27. 27.In how many years will ₹10000 earn ₹1800 simple interest at 6% per year? (a) 4 years (b) 3 years (c) 2 years (d) 6 years
28. 28.What is the simple interest on ₹3000 at 3% per year for 2 years? (a) ₹180 (b) ₹3180 (c) ₹270 (d) ₹90
29. 29.₹5000 is invested at 9% per year simple interest. What is the amount after 2 years? (a) ₹5450 (b) ₹5900 (c) ₹6350 (d) ₹900
30. 30.₹7000 is invested at 8% per year simple interest. What is the amount after 3 years? (a) ₹7560 (b) ₹9240 (c) ₹8680 (d) ₹1680
31. 31.₹6500 is invested at 2% per year simple interest. What is the amount after 5 years? (a) ₹6630 (b) ₹7150 (c) ₹650 (d) ₹7280
32. 32.₹8000 is invested at 5% per year simple interest. What is the amount after 5 years? (a) ₹8400 (b) ₹10400 (c) ₹10000 (d) ₹2000
33. 33.The simple interest on ₹3500 for 3 years is ₹735. What is the rate per year? (a) 8% (b) 21% (c) 7% (d) 6%
34. 34.What is the simple interest on ₹4500 at 10% per year for 5 years? (a) ₹2250 (b) ₹2700 (c) ₹450 (d) ₹6750
35. 35.The simple interest on ₹1000 for 3 years is ₹210. What is the rate per year? (a) 6% (b) 8% (c) 7% (d) 21%
36. 36.₹3500 is invested at 5% per year simple interest. What is the amount after 4 years? (a) ₹4375 (b) ₹4200 (c) ₹700 (d) ₹3675
37. 37.The simple interest on ₹4000 for 3 years is ₹360. What is the rate per year? (a) 2% (b) 4% (c) 3% (d) 9%
38. 38.The simple interest on ₹9000 for 2 years is ₹1080. What is the rate per year? (a) 12% (b) 6% (c) 5% (d) 7%
39. 39.What is the simple interest on ₹8500 at 2% per year for 3 years? (a) ₹510 (b) ₹9010 (c) ₹170 (d) ₹680
40. 40.The simple interest on ₹9000 for 3 years is ₹1620. What is the rate per year? (a) 18% (b) 7% (c) 6% (d) 5%

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