Simple Interest Worksheet for Maths Olympiad

Maths Olympiad topic 16: Simple interest · Set 582 · 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 ₹3500 for 4 years is ₹560. What is the rate per year? (a) 16% (b) 5% (c) 3% (d) 4%
2. 2.The simple interest on ₹8000 for 3 years is ₹1440. What is the rate per year? (a) 18% (b) 5% (c) 6% (d) 7%
3. 3.In how many years will ₹6500 earn ₹1755 simple interest at 9% per year? (a) 4 years (b) 2 years (c) 6 years (d) 3 years
4. 4.₹4500 is invested at 5% per year simple interest. What is the amount after 2 years? (a) ₹450 (b) ₹4950 (c) ₹4725 (d) ₹5175
5. 5.The simple interest on ₹5000 for 5 years is ₹1500. What is the rate per year? (a) 5% (b) 30% (c) 7% (d) 6%
6. 6.The simple interest on ₹7500 for 4 years is ₹1800. What is the rate per year? (a) 24% (b) 5% (c) 7% (d) 6%
7. 7.₹7500 is invested at 7% per year simple interest. What is the amount after 4 years? (a) ₹2100 (b) ₹8025 (c) ₹9600 (d) ₹10125
8. 8.₹1500 is invested at 3% per year simple interest. What is the amount after 5 years? (a) ₹1725 (b) ₹225 (c) ₹1770 (d) ₹1545
9. 9.₹1500 is invested at 5% per year simple interest. What is the amount after 5 years? (a) ₹375 (b) ₹1950 (c) ₹1575 (d) ₹1875
10. 10.The simple interest on ₹8000 for 4 years is ₹1920. What is the rate per year? (a) 7% (b) 5% (c) 6% (d) 24%
11. 11.What is the simple interest on ₹7000 at 12% per year for 2 years? (a) ₹2520 (b) ₹840 (c) ₹1680 (d) ₹8680
12. 12.What is the simple interest on ₹2000 at 5% per year for 3 years? (a) ₹100 (b) ₹400 (c) ₹300 (d) ₹2300
13. 13.What is the simple interest on ₹1000 at 8% per year for 3 years? (a) ₹240 (b) ₹320 (c) ₹1240 (d) ₹80
14. 14.The simple interest on ₹5000 for 3 years is ₹600. What is the rate per year? (a) 3% (b) 4% (c) 12% (d) 5%
15. 15.The simple interest on ₹1000 for 3 years is ₹60. What is the rate per year? (a) 3% (b) 2% (c) 6% (d) 1%
16. 16.What is the simple interest on ₹8500 at 3% per year for 4 years? (a) ₹1275 (b) ₹1020 (c) ₹255 (d) ₹9520
17. 17.The simple interest on ₹4500 for 4 years is ₹1080. What is the rate per year? (a) 5% (b) 24% (c) 7% (d) 6%
18. 18.The simple interest on ₹1000 for 2 years is ₹80. What is the rate per year? (a) 4% (b) 8% (c) 3% (d) 5%
19. 19.In how many years will ₹7000 earn ₹4200 simple interest at 12% per year? (a) 6 years (b) 5 years (c) 10 years (d) 4 years
20. 20.The simple interest on ₹4000 for 2 years is ₹400. What is the rate per year? (a) 4% (b) 6% (c) 10% (d) 5%
21. 21.In how many years will ₹5500 earn ₹495 simple interest at 3% per year? (a) 4 years (b) 2 years (c) 6 years (d) 3 years
22. 22.The simple interest on ₹9000 for 3 years is ₹1080. What is the rate per year? (a) 12% (b) 3% (c) 5% (d) 4%
23. 23.The simple interest on ₹6000 for 3 years is ₹1800. What is the rate per year? (a) 30% (b) 10% (c) 9% (d) 11%
24. 24.In how many years will ₹9000 earn ₹2160 simple interest at 6% per year? (a) 5 years (b) 8 years (c) 4 years (d) 3 years
25. 25.₹4000 is invested at 8% per year simple interest. What is the amount after 3 years? (a) ₹4960 (b) ₹960 (c) ₹5280 (d) ₹4320
26. 26.₹8000 is invested at 3% per year simple interest. What is the amount after 2 years? (a) ₹8480 (b) ₹8240 (c) ₹8720 (d) ₹480
27. 27.The simple interest on ₹5000 for 2 years is ₹200. What is the rate per year? (a) 2% (b) 3% (c) 1% (d) 4%
28. 28.₹1500 is invested at 4% per year simple interest. What is the amount after 5 years? (a) ₹1560 (b) ₹300 (c) ₹1860 (d) ₹1800
29. 29.₹1500 is invested at 7% per year simple interest. What is the amount after 3 years? (a) ₹315 (b) ₹1815 (c) ₹1920 (d) ₹1605
30. 30.What is the simple interest on ₹6000 at 12% per year for 3 years? (a) ₹8160 (b) ₹2880 (c) ₹2160 (d) ₹720
31. 31.The simple interest on ₹10000 for 2 years is ₹1600. What is the rate per year? (a) 16% (b) 9% (c) 7% (d) 8%
32. 32.The simple interest on ₹3500 for 2 years is ₹490. What is the rate per year? (a) 14% (b) 8% (c) 6% (d) 7%
33. 33.₹9000 is invested at 12% per year simple interest. What is the amount after 5 years? (a) ₹5400 (b) ₹10080 (c) ₹15480 (d) ₹14400
34. 34.What is the simple interest on ₹6000 at 10% per year for 3 years? (a) ₹600 (b) ₹1800 (c) ₹7800 (d) ₹2400
35. 35.The simple interest on ₹3500 for 3 years is ₹210. What is the rate per year? (a) 2% (b) 6% (c) 1% (d) 3%
36. 36.The simple interest on ₹1000 for 2 years is ₹200. What is the rate per year? (a) 9% (b) 20% (c) 11% (d) 10%
37. 37.The simple interest on ₹4000 for 2 years is ₹480. What is the rate per year? (a) 12% (b) 7% (c) 6% (d) 5%
38. 38.What is the simple interest on ₹4500 at 4% per year for 3 years? (a) ₹180 (b) ₹5040 (c) ₹540 (d) ₹720
39. 39.₹5000 is invested at 6% per year simple interest. What is the amount after 3 years? (a) ₹5300 (b) ₹900 (c) ₹5900 (d) ₹6200
40. 40.₹6500 is invested at 6% per year simple interest. What is the amount after 2 years? (a) ₹6890 (b) ₹7670 (c) ₹780 (d) ₹7280

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