Simple Interest Worksheet for Maths Olympiad

Maths Olympiad topic 16: Simple interest · Set 457 · 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 ₹8500 for 5 years is ₹2975. What is the rate per year? (a) 6% (b) 7% (c) 8% (d) 35%
2. 2.₹6500 is invested at 5% per year simple interest. What is the amount after 2 years? (a) ₹650 (b) ₹6825 (c) ₹7150 (d) ₹7475
3. 3.The simple interest on ₹4500 for 4 years is ₹1980. What is the rate per year? (a) 12% (b) 11% (c) 10% (d) 44%
4. 4.In how many years will ₹2000 earn ₹480 simple interest at 12% per year? (a) 1 year (b) 2 years (c) 4 years (d) 3 years
5. 5.₹2000 is invested at 9% per year simple interest. What is the amount after 5 years? (a) ₹2900 (b) ₹2180 (c) ₹900 (d) ₹3080
6. 6.₹9500 is invested at 7% per year simple interest. What is the amount after 2 years? (a) ₹10830 (b) ₹1330 (c) ₹11495 (d) ₹10165
7. 7.₹8500 is invested at 2% per year simple interest. What is the amount after 4 years? (a) ₹8670 (b) ₹9180 (c) ₹9350 (d) ₹680
8. 8.What is the simple interest on ₹2000 at 2% per year for 4 years? (a) ₹200 (b) ₹160 (c) ₹40 (d) ₹2160
9. 9.The simple interest on ₹7500 for 3 years is ₹2700. What is the rate per year? (a) 13% (b) 11% (c) 12% (d) 36%
10. 10.₹10000 is invested at 4% per year simple interest. What is the amount after 4 years? (a) ₹12000 (b) ₹10400 (c) ₹1600 (d) ₹11600
11. 11.What is the simple interest on ₹4000 at 2% per year for 2 years? (a) ₹80 (b) ₹160 (c) ₹4160 (d) ₹240
12. 12.What is the simple interest on ₹9500 at 8% per year for 2 years? (a) ₹760 (b) ₹11020 (c) ₹1520 (d) ₹2280
13. 13.₹8000 is invested at 8% per year simple interest. What is the amount after 3 years? (a) ₹1920 (b) ₹8640 (c) ₹9920 (d) ₹10560
14. 14.₹1000 is invested at 9% per year simple interest. What is the amount after 4 years? (a) ₹1090 (b) ₹360 (c) ₹1450 (d) ₹1360
15. 15.The simple interest on ₹2000 for 5 years is ₹400. What is the rate per year? (a) 20% (b) 3% (c) 5% (d) 4%
16. 16.₹8000 is invested at 5% per year simple interest. What is the amount after 3 years? (a) ₹8400 (b) ₹9600 (c) ₹1200 (d) ₹9200
17. 17.₹10000 is invested at 9% per year simple interest. What is the amount after 3 years? (a) ₹13600 (b) ₹2700 (c) ₹10900 (d) ₹12700
18. 18.₹6500 is invested at 6% per year simple interest. What is the amount after 2 years? (a) ₹6890 (b) ₹780 (c) ₹7670 (d) ₹7280
19. 19.In how many years will ₹4000 earn ₹880 simple interest at 11% per year? (a) 2 years (b) 1 year (c) 4 years (d) 3 years
20. 20.What is the simple interest on ₹4500 at 12% per year for 2 years? (a) ₹1620 (b) ₹540 (c) ₹1080 (d) ₹5580
21. 21.In how many years will ₹8500 earn ₹2380 simple interest at 7% per year? (a) 3 years (b) 4 years (c) 8 years (d) 5 years
22. 22.₹6500 is invested at 4% per year simple interest. What is the amount after 5 years? (a) ₹7800 (b) ₹8060 (c) ₹1300 (d) ₹6760
23. 23.In how many years will ₹7500 earn ₹1350 simple interest at 9% per year? (a) 2 years (b) 4 years (c) 1 year (d) 3 years
24. 24.What is the simple interest on ₹1000 at 12% per year for 4 years? (a) ₹600 (b) ₹1480 (c) ₹480 (d) ₹120
25. 25.₹1500 is invested at 8% per year simple interest. What is the amount after 4 years? (a) ₹480 (b) ₹1620 (c) ₹2100 (d) ₹1980
26. 26.In how many years will ₹9500 earn ₹2280 simple interest at 12% per year? (a) 3 years (b) 1 year (c) 2 years (d) 4 years
27. 27.In how many years will ₹5500 earn ₹990 simple interest at 6% per year? (a) 2 years (b) 3 years (c) 4 years (d) 6 years
28. 28.₹4000 is invested at 5% per year simple interest. What is the amount after 2 years? (a) ₹4200 (b) ₹400 (c) ₹4600 (d) ₹4400
29. 29.In how many years will ₹9000 earn ₹2160 simple interest at 8% per year? (a) 4 years (b) 3 years (c) 2 years (d) 6 years
30. 30.The simple interest on ₹9500 for 4 years is ₹3800. What is the rate per year? (a) 11% (b) 40% (c) 9% (d) 10%
31. 31.In how many years will ₹8500 earn ₹1530 simple interest at 6% per year? (a) 4 years (b) 6 years (c) 2 years (d) 3 years
32. 32.The simple interest on ₹8500 for 2 years is ₹1870. What is the rate per year? (a) 12% (b) 11% (c) 10% (d) 22%
33. 33.₹8500 is invested at 3% per year simple interest. What is the amount after 4 years? (a) ₹9775 (b) ₹9520 (c) ₹8755 (d) ₹1020
34. 34.₹3500 is invested at 12% per year simple interest. What is the amount after 5 years? (a) ₹6020 (b) ₹3920 (c) ₹5600 (d) ₹2100
35. 35.In how many years will ₹1500 earn ₹360 simple interest at 6% per year? (a) 8 years (b) 5 years (c) 4 years (d) 3 years
36. 36.What is the simple interest on ₹9500 at 4% per year for 4 years? (a) ₹11020 (b) ₹380 (c) ₹1520 (d) ₹1900
37. 37.₹8500 is invested at 12% per year simple interest. What is the amount after 5 years? (a) ₹9520 (b) ₹14620 (c) ₹5100 (d) ₹13600
38. 38.In how many years will ₹8000 earn ₹4000 simple interest at 10% per year? (a) 5 years (b) 10 years (c) 4 years (d) 6 years
39. 39.₹4500 is invested at 4% per year simple interest. What is the amount after 3 years? (a) ₹4680 (b) ₹5040 (c) ₹5220 (d) ₹540
40. 40.The simple interest on ₹8000 for 3 years is ₹2160. What is the rate per year? (a) 8% (b) 9% (c) 27% (d) 10%

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