Simple Interest Worksheet for Maths Olympiad

Maths Olympiad topic 16: Simple interest · Set 145 · 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 2 years is ₹490. What is the rate per year? (a) 8% (b) 7% (c) 14% (d) 6%
2. 2.What is the simple interest on ₹5500 at 6% per year for 5 years? (a) ₹7150 (b) ₹1980 (c) ₹330 (d) ₹1650
3. 3.The simple interest on ₹4500 for 2 years is ₹900. What is the rate per year? (a) 10% (b) 11% (c) 9% (d) 20%
4. 4.₹7500 is invested at 5% per year simple interest. What is the amount after 3 years? (a) ₹9000 (b) ₹1125 (c) ₹7875 (d) ₹8625
5. 5.In how many years will ₹8000 earn ₹1920 simple interest at 12% per year? (a) 3 years (b) 2 years (c) 1 year (d) 4 years
6. 6.₹7000 is invested at 2% per year simple interest. What is the amount after 5 years? (a) ₹700 (b) ₹7840 (c) ₹7700 (d) ₹7140
7. 7.The simple interest on ₹8500 for 3 years is ₹1020. What is the rate per year? (a) 3% (b) 5% (c) 12% (d) 4%
8. 8.₹9000 is invested at 7% per year simple interest. What is the amount after 2 years? (a) ₹10260 (b) ₹1260 (c) ₹9630 (d) ₹10890
9. 9.₹2500 is invested at 8% per year simple interest. What is the amount after 5 years? (a) ₹1000 (b) ₹3500 (c) ₹3700 (d) ₹2700
10. 10.₹3500 is invested at 9% per year simple interest. What is the amount after 4 years? (a) ₹1260 (b) ₹3815 (c) ₹4760 (d) ₹5075
11. 11.What is the simple interest on ₹10000 at 4% per year for 4 years? (a) ₹400 (b) ₹2000 (c) ₹11600 (d) ₹1600
12. 12.₹10000 is invested at 10% per year simple interest. What is the amount after 4 years? (a) ₹14000 (b) ₹15000 (c) ₹11000 (d) ₹4000
13. 13.In how many years will ₹3000 earn ₹270 simple interest at 3% per year? (a) 2 years (b) 6 years (c) 4 years (d) 3 years
14. 14.The simple interest on ₹8500 for 3 years is ₹3060. What is the rate per year? (a) 36% (b) 11% (c) 13% (d) 12%
15. 15.What is the simple interest on ₹6500 at 6% per year for 2 years? (a) ₹1170 (b) ₹7280 (c) ₹390 (d) ₹780
16. 16.What is the simple interest on ₹3500 at 2% per year for 4 years? (a) ₹350 (b) ₹3780 (c) ₹70 (d) ₹280
17. 17.₹3000 is invested at 4% per year simple interest. What is the amount after 4 years? (a) ₹3480 (b) ₹480 (c) ₹3600 (d) ₹3120
18. 18.The simple interest on ₹2000 for 2 years is ₹80. What is the rate per year? (a) 2% (b) 3% (c) 1% (d) 4%
19. 19.₹3500 is invested at 12% per year simple interest. What is the amount after 5 years? (a) ₹3920 (b) ₹6020 (c) ₹2100 (d) ₹5600
20. 20.What is the simple interest on ₹4000 at 6% per year for 4 years? (a) ₹960 (b) ₹4960 (c) ₹1200 (d) ₹240
21. 21.₹6000 is invested at 6% per year simple interest. What is the amount after 5 years? (a) ₹6360 (b) ₹7800 (c) ₹1800 (d) ₹8160
22. 22.What is the simple interest on ₹8000 at 6% per year for 3 years? (a) ₹9440 (b) ₹1440 (c) ₹480 (d) ₹1920
23. 23.The simple interest on ₹4000 for 3 years is ₹1080. What is the rate per year? (a) 27% (b) 8% (c) 9% (d) 10%
24. 24.What is the simple interest on ₹3500 at 3% per year for 2 years? (a) ₹315 (b) ₹3710 (c) ₹105 (d) ₹210
25. 25.₹2500 is invested at 9% per year simple interest. What is the amount after 5 years? (a) ₹1125 (b) ₹3850 (c) ₹2725 (d) ₹3625
26. 26.The simple interest on ₹5000 for 5 years is ₹1250. What is the rate per year? (a) 5% (b) 25% (c) 6% (d) 4%
27. 27.In how many years will ₹6500 earn ₹1560 simple interest at 6% per year? (a) 4 years (b) 3 years (c) 8 years (d) 5 years
28. 28.In how many years will ₹3000 earn ₹300 simple interest at 5% per year? (a) 2 years (b) 1 year (c) 3 years (d) 4 years
29. 29.The simple interest on ₹5000 for 2 years is ₹200. What is the rate per year? (a) 1% (b) 2% (c) 3% (d) 4%
30. 30.The simple interest on ₹7500 for 3 years is ₹675. What is the rate per year? (a) 9% (b) 3% (c) 4% (d) 2%
31. 31.What is the simple interest on ₹9000 at 6% per year for 2 years? (a) ₹540 (b) ₹1620 (c) ₹1080 (d) ₹10080
32. 32.What is the simple interest on ₹1000 at 2% per year for 3 years? (a) ₹60 (b) ₹80 (c) ₹20 (d) ₹1060
33. 33.What is the simple interest on ₹2500 at 10% per year for 3 years? (a) ₹250 (b) ₹3250 (c) ₹1000 (d) ₹750
34. 34.What is the simple interest on ₹9000 at 5% per year for 3 years? (a) ₹450 (b) ₹10350 (c) ₹1350 (d) ₹1800
35. 35.The simple interest on ₹5000 for 2 years is ₹1100. What is the rate per year? (a) 11% (b) 12% (c) 22% (d) 10%
36. 36.The simple interest on ₹8500 for 3 years is ₹2295. What is the rate per year? (a) 27% (b) 10% (c) 8% (d) 9%
37. 37.₹9500 is invested at 4% per year simple interest. What is the amount after 2 years? (a) ₹9880 (b) ₹10260 (c) ₹760 (d) ₹10640
38. 38.The simple interest on ₹5500 for 5 years is ₹550. What is the rate per year? (a) 3% (b) 2% (c) 10% (d) 1%
39. 39.In how many years will ₹5000 earn ₹1000 simple interest at 5% per year? (a) 5 years (b) 4 years (c) 8 years (d) 3 years
40. 40.The simple interest on ₹1000 for 4 years is ₹240. What is the rate per year? (a) 5% (b) 7% (c) 6% (d) 24%

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