Simple Interest Worksheet for Maths Olympiad

Maths Olympiad topic 16: Simple interest · Set 76 · 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 ₹7500 earn ₹2400 simple interest at 8% per year? (a) 8 years (b) 3 years (c) 4 years (d) 5 years
2. 2.What is the simple interest on ₹2000 at 12% per year for 3 years? (a) ₹960 (b) ₹2720 (c) ₹240 (d) ₹720
3. 3.What is the simple interest on ₹5500 at 11% per year for 4 years? (a) ₹2420 (b) ₹3025 (c) ₹7920 (d) ₹605
4. 4.In how many years will ₹2000 earn ₹300 simple interest at 5% per year? (a) 2 years (b) 4 years (c) 3 years (d) 6 years
5. 5.In how many years will ₹10000 earn ₹600 simple interest at 2% per year? (a) 3 years (b) 2 years (c) 4 years (d) 6 years
6. 6.₹3000 is invested at 7% per year simple interest. What is the amount after 2 years? (a) ₹3210 (b) ₹420 (c) ₹3630 (d) ₹3420
7. 7.The simple interest on ₹6000 for 5 years is ₹1500. What is the rate per year? (a) 25% (b) 4% (c) 5% (d) 6%
8. 8.In how many years will ₹6000 earn ₹360 simple interest at 3% per year? (a) 1 year (b) 4 years (c) 2 years (d) 3 years
9. 9.In how many years will ₹6500 earn ₹975 simple interest at 5% per year? (a) 6 years (b) 3 years (c) 2 years (d) 4 years
10. 10.₹9500 is invested at 12% per year simple interest. What is the amount after 2 years? (a) ₹10640 (b) ₹2280 (c) ₹12920 (d) ₹11780
11. 11.The simple interest on ₹2500 for 2 years is ₹450. What is the rate per year? (a) 8% (b) 9% (c) 10% (d) 18%
12. 12.In how many years will ₹8500 earn ₹680 simple interest at 4% per year? (a) 3 years (b) 2 years (c) 4 years (d) 1 year
13. 13.₹4500 is invested at 3% per year simple interest. What is the amount after 4 years? (a) ₹4635 (b) ₹540 (c) ₹5040 (d) ₹5175
14. 14.₹9000 is invested at 6% per year simple interest. What is the amount after 2 years? (a) ₹10620 (b) ₹10080 (c) ₹1080 (d) ₹9540
15. 15.What is the simple interest on ₹8500 at 9% per year for 2 years? (a) ₹2295 (b) ₹765 (c) ₹1530 (d) ₹10030
16. 16.₹3000 is invested at 6% per year simple interest. What is the amount after 3 years? (a) ₹3720 (b) ₹540 (c) ₹3540 (d) ₹3180
17. 17.What is the simple interest on ₹5500 at 6% per year for 2 years? (a) ₹6160 (b) ₹990 (c) ₹660 (d) ₹330
18. 18.What is the simple interest on ₹1500 at 8% per year for 2 years? (a) ₹1740 (b) ₹240 (c) ₹360 (d) ₹120
19. 19.The simple interest on ₹8000 for 4 years is ₹1920. What is the rate per year? (a) 5% (b) 6% (c) 24% (d) 7%
20. 20.The simple interest on ₹6000 for 4 years is ₹2400. What is the rate per year? (a) 40% (b) 10% (c) 9% (d) 11%
21. 21.₹3000 is invested at 8% per year simple interest. What is the amount after 3 years? (a) ₹3720 (b) ₹3240 (c) ₹3960 (d) ₹720
22. 22.What is the simple interest on ₹2500 at 11% per year for 4 years? (a) ₹1375 (b) ₹1100 (c) ₹3600 (d) ₹275
23. 23.The simple interest on ₹10000 for 2 years is ₹400. What is the rate per year? (a) 1% (b) 2% (c) 3% (d) 4%
24. 24.₹3500 is invested at 10% per year simple interest. What is the amount after 2 years? (a) ₹3850 (b) ₹4200 (c) ₹700 (d) ₹4550
25. 25.₹8500 is invested at 9% per year simple interest. What is the amount after 2 years? (a) ₹9265 (b) ₹1530 (c) ₹10795 (d) ₹10030
26. 26.In how many years will ₹1500 earn ₹330 simple interest at 11% per year? (a) 3 years (b) 2 years (c) 1 year (d) 4 years
27. 27.What is the simple interest on ₹3500 at 7% per year for 2 years? (a) ₹735 (b) ₹490 (c) ₹245 (d) ₹3990
28. 28.₹1000 is invested at 10% per year simple interest. What is the amount after 4 years? (a) ₹1500 (b) ₹1400 (c) ₹1100 (d) ₹400
29. 29.What is the simple interest on ₹9000 at 4% per year for 2 years? (a) ₹360 (b) ₹1080 (c) ₹720 (d) ₹9720
30. 30.The simple interest on ₹2500 for 4 years is ₹900. What is the rate per year? (a) 10% (b) 8% (c) 36% (d) 9%
31. 31.The simple interest on ₹5500 for 4 years is ₹440. What is the rate per year? (a) 1% (b) 8% (c) 2% (d) 3%
32. 32.What is the simple interest on ₹8500 at 4% per year for 3 years? (a) ₹340 (b) ₹1360 (c) ₹9520 (d) ₹1020
33. 33.In how many years will ₹4000 earn ₹600 simple interest at 3% per year? (a) 5 years (b) 10 years (c) 6 years (d) 4 years
34. 34.What is the simple interest on ₹9000 at 10% per year for 4 years? (a) ₹3600 (b) ₹4500 (c) ₹12600 (d) ₹900
35. 35.In how many years will ₹3000 earn ₹180 simple interest at 2% per year? (a) 3 years (b) 4 years (c) 6 years (d) 2 years
36. 36.What is the simple interest on ₹10000 at 2% per year for 2 years? (a) ₹200 (b) ₹10400 (c) ₹600 (d) ₹400
37. 37.In how many years will ₹5000 earn ₹1200 simple interest at 8% per year? (a) 4 years (b) 2 years (c) 3 years (d) 6 years
38. 38.What is the simple interest on ₹10000 at 2% per year for 4 years? (a) ₹800 (b) ₹1000 (c) ₹10800 (d) ₹200
39. 39.In how many years will ₹6000 earn ₹2880 simple interest at 12% per year? (a) 5 years (b) 4 years (c) 8 years (d) 3 years
40. 40.What is the simple interest on ₹4500 at 12% per year for 3 years? (a) ₹2160 (b) ₹6120 (c) ₹1620 (d) ₹540

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