Simple Interest Worksheet for Maths Olympiad

Maths Olympiad topic 16: Simple interest · Set 117 · 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 ₹2500 for 3 years is ₹600. What is the rate per year? (a) 24% (b) 8% (c) 7% (d) 9%
2. 2.₹3500 is invested at 5% per year simple interest. What is the amount after 4 years? (a) ₹4375 (b) ₹700 (c) ₹3675 (d) ₹4200
3. 3.The simple interest on ₹8000 for 4 years is ₹1280. What is the rate per year? (a) 16% (b) 3% (c) 5% (d) 4%
4. 4.₹3000 is invested at 12% per year simple interest. What is the amount after 3 years? (a) ₹3360 (b) ₹4440 (c) ₹4080 (d) ₹1080
5. 5.What is the simple interest on ₹2000 at 11% per year for 4 years? (a) ₹2880 (b) ₹880 (c) ₹1100 (d) ₹220
6. 6.The simple interest on ₹8000 for 2 years is ₹960. What is the rate per year? (a) 6% (b) 7% (c) 12% (d) 5%
7. 7.What is the simple interest on ₹1500 at 11% per year for 4 years? (a) ₹825 (b) ₹660 (c) ₹2160 (d) ₹165
8. 8.In how many years will ₹5000 earn ₹1350 simple interest at 9% per year? (a) 2 years (b) 3 years (c) 6 years (d) 4 years
9. 9.₹1000 is invested at 8% per year simple interest. What is the amount after 3 years? (a) ₹1080 (b) ₹240 (c) ₹1240 (d) ₹1320
10. 10.₹1500 is invested at 5% per year simple interest. What is the amount after 4 years? (a) ₹1575 (b) ₹1800 (c) ₹1875 (d) ₹300
11. 11.The simple interest on ₹2500 for 2 years is ₹350. What is the rate per year? (a) 7% (b) 14% (c) 8% (d) 6%
12. 12.The simple interest on ₹3500 for 2 years is ₹770. What is the rate per year? (a) 11% (b) 22% (c) 12% (d) 10%
13. 13.₹8000 is invested at 4% per year simple interest. What is the amount after 2 years? (a) ₹640 (b) ₹8640 (c) ₹8960 (d) ₹8320
14. 14.₹9000 is invested at 3% per year simple interest. What is the amount after 5 years? (a) ₹10350 (b) ₹9270 (c) ₹10620 (d) ₹1350
15. 15.₹7000 is invested at 2% per year simple interest. What is the amount after 2 years? (a) ₹280 (b) ₹7140 (c) ₹7420 (d) ₹7280
16. 16.What is the simple interest on ₹8500 at 6% per year for 3 years? (a) ₹2040 (b) ₹1530 (c) ₹10030 (d) ₹510
17. 17.In how many years will ₹6000 earn ₹1080 simple interest at 6% per year? (a) 4 years (b) 2 years (c) 6 years (d) 3 years
18. 18.The simple interest on ₹5500 for 5 years is ₹1375. What is the rate per year? (a) 6% (b) 5% (c) 25% (d) 4%
19. 19.The simple interest on ₹6500 for 4 years is ₹1040. What is the rate per year? (a) 5% (b) 4% (c) 16% (d) 3%
20. 20.What is the simple interest on ₹5000 at 8% per year for 2 years? (a) ₹800 (b) ₹5800 (c) ₹400 (d) ₹1200
21. 21.What is the simple interest on ₹7500 at 6% per year for 5 years? (a) ₹9750 (b) ₹2700 (c) ₹2250 (d) ₹450
22. 22.What is the simple interest on ₹6500 at 6% per year for 4 years? (a) ₹1950 (b) ₹1560 (c) ₹390 (d) ₹8060
23. 23.₹2500 is invested at 12% per year simple interest. What is the amount after 4 years? (a) ₹3700 (b) ₹2800 (c) ₹1200 (d) ₹4000
24. 24.In how many years will ₹7500 earn ₹1350 simple interest at 9% per year? (a) 1 year (b) 2 years (c) 3 years (d) 4 years
25. 25.What is the simple interest on ₹9500 at 9% per year for 5 years? (a) ₹5130 (b) ₹855 (c) ₹13775 (d) ₹4275
26. 26.₹4000 is invested at 8% per year simple interest. What is the amount after 2 years? (a) ₹640 (b) ₹4320 (c) ₹4640 (d) ₹4960
27. 27.In how many years will ₹10000 earn ₹5500 simple interest at 11% per year? (a) 10 years (b) 4 years (c) 6 years (d) 5 years
28. 28.The simple interest on ₹6000 for 2 years is ₹600. What is the rate per year? (a) 10% (b) 4% (c) 5% (d) 6%
29. 29.In how many years will ₹3500 earn ₹1155 simple interest at 11% per year? (a) 4 years (b) 3 years (c) 2 years (d) 6 years
30. 30.What is the simple interest on ₹5500 at 6% per year for 4 years? (a) ₹6820 (b) ₹330 (c) ₹1320 (d) ₹1650
31. 31.In how many years will ₹7500 earn ₹450 simple interest at 3% per year? (a) 4 years (b) 1 year (c) 3 years (d) 2 years
32. 32.The simple interest on ₹2000 for 2 years is ₹80. What is the rate per year? (a) 4% (b) 3% (c) 1% (d) 2%
33. 33.What is the simple interest on ₹10000 at 8% per year for 2 years? (a) ₹1600 (b) ₹800 (c) ₹11600 (d) ₹2400
34. 34.What is the simple interest on ₹9000 at 4% per year for 4 years? (a) ₹1440 (b) ₹360 (c) ₹10440 (d) ₹1800
35. 35.₹6500 is invested at 6% per year simple interest. What is the amount after 4 years? (a) ₹1560 (b) ₹6890 (c) ₹8060 (d) ₹8450
36. 36.What is the simple interest on ₹6000 at 8% per year for 3 years? (a) ₹480 (b) ₹1920 (c) ₹7440 (d) ₹1440
37. 37.In how many years will ₹4000 earn ₹360 simple interest at 3% per year? (a) 3 years (b) 6 years (c) 4 years (d) 2 years
38. 38.The simple interest on ₹8500 for 4 years is ₹1020. What is the rate per year? (a) 2% (b) 12% (c) 3% (d) 4%
39. 39.The simple interest on ₹5000 for 2 years is ₹700. What is the rate per year? (a) 7% (b) 6% (c) 8% (d) 14%
40. 40.In how many years will ₹9000 earn ₹1080 simple interest at 6% per year? (a) 4 years (b) 1 year (c) 2 years (d) 3 years

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