Simple Interest Worksheet for Maths Olympiad

Maths Olympiad topic 16: Simple interest · Set 651 · 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 ₹3000 for 2 years is ₹540. What is the rate per year? (a) 18% (b) 10% (c) 9% (d) 8%
2. 2.In how many years will ₹5500 earn ₹1100 simple interest at 4% per year? (a) 10 years (b) 4 years (c) 5 years (d) 6 years
3. 3.In how many years will ₹2000 earn ₹480 simple interest at 8% per year? (a) 2 years (b) 6 years (c) 4 years (d) 3 years
4. 4.₹6000 is invested at 3% per year simple interest. What is the amount after 4 years? (a) ₹6180 (b) ₹6900 (c) ₹720 (d) ₹6720
5. 5.In how many years will ₹6000 earn ₹1080 simple interest at 9% per year? (a) 4 years (b) 1 year (c) 3 years (d) 2 years
6. 6.₹4000 is invested at 6% per year simple interest. What is the amount after 4 years? (a) ₹5200 (b) ₹4240 (c) ₹960 (d) ₹4960
7. 7.The simple interest on ₹7000 for 3 years is ₹1680. What is the rate per year? (a) 24% (b) 9% (c) 8% (d) 7%
8. 8.₹9000 is invested at 10% per year simple interest. What is the amount after 5 years? (a) ₹4500 (b) ₹13500 (c) ₹14400 (d) ₹9900
9. 9.What is the simple interest on ₹1500 at 2% per year for 4 years? (a) ₹120 (b) ₹1620 (c) ₹30 (d) ₹150
10. 10.What is the simple interest on ₹1500 at 12% per year for 4 years? (a) ₹180 (b) ₹720 (c) ₹900 (d) ₹2220
11. 11.In how many years will ₹9000 earn ₹4050 simple interest at 9% per year? (a) 5 years (b) 4 years (c) 6 years (d) 10 years
12. 12.₹5500 is invested at 3% per year simple interest. What is the amount after 4 years? (a) ₹6160 (b) ₹660 (c) ₹6325 (d) ₹5665
13. 13.₹1000 is invested at 12% per year simple interest. What is the amount after 2 years? (a) ₹1360 (b) ₹1240 (c) ₹240 (d) ₹1120
14. 14.What is the simple interest on ₹6500 at 3% per year for 2 years? (a) ₹195 (b) ₹390 (c) ₹6890 (d) ₹585
15. 15.The simple interest on ₹7500 for 2 years is ₹900. What is the rate per year? (a) 6% (b) 5% (c) 7% (d) 12%
16. 16.What is the simple interest on ₹8500 at 7% per year for 2 years? (a) ₹595 (b) ₹1190 (c) ₹9690 (d) ₹1785
17. 17.₹9500 is invested at 8% per year simple interest. What is the amount after 3 years? (a) ₹12540 (b) ₹11780 (c) ₹10260 (d) ₹2280
18. 18.The simple interest on ₹4500 for 2 years is ₹720. What is the rate per year? (a) 16% (b) 8% (c) 9% (d) 7%
19. 19.What is the simple interest on ₹4500 at 10% per year for 5 years? (a) ₹450 (b) ₹2250 (c) ₹2700 (d) ₹6750
20. 20.The simple interest on ₹10000 for 4 years is ₹4400. What is the rate per year? (a) 10% (b) 12% (c) 11% (d) 44%
21. 21.₹8500 is invested at 10% per year simple interest. What is the amount after 2 years? (a) ₹10200 (b) ₹9350 (c) ₹1700 (d) ₹11050
22. 22.What is the simple interest on ₹6500 at 8% per year for 3 years? (a) ₹2080 (b) ₹1560 (c) ₹8060 (d) ₹520
23. 23.What is the simple interest on ₹7500 at 4% per year for 5 years? (a) ₹300 (b) ₹9000 (c) ₹1500 (d) ₹1800
24. 24.What is the simple interest on ₹1000 at 3% per year for 5 years? (a) ₹30 (b) ₹1150 (c) ₹180 (d) ₹150
25. 25.In how many years will ₹9000 earn ₹1440 simple interest at 8% per year? (a) 4 years (b) 3 years (c) 1 year (d) 2 years
26. 26.What is the simple interest on ₹1000 at 11% per year for 4 years? (a) ₹110 (b) ₹1440 (c) ₹440 (d) ₹550
27. 27.In how many years will ₹9500 earn ₹855 simple interest at 3% per year? (a) 4 years (b) 2 years (c) 6 years (d) 3 years
28. 28.What is the simple interest on ₹4000 at 9% per year for 5 years? (a) ₹1800 (b) ₹5800 (c) ₹2160 (d) ₹360
29. 29.What is the simple interest on ₹1500 at 10% per year for 5 years? (a) ₹900 (b) ₹750 (c) ₹150 (d) ₹2250
30. 30.In how many years will ₹9000 earn ₹1080 simple interest at 3% per year? (a) 8 years (b) 3 years (c) 4 years (d) 5 years
31. 31.₹7000 is invested at 6% per year simple interest. What is the amount after 2 years? (a) ₹8260 (b) ₹7840 (c) ₹7420 (d) ₹840
32. 32.What is the simple interest on ₹3500 at 5% per year for 5 years? (a) ₹875 (b) ₹175 (c) ₹1050 (d) ₹4375
33. 33.In how many years will ₹3000 earn ₹1650 simple interest at 11% per year? (a) 4 years (b) 6 years (c) 10 years (d) 5 years
34. 34.In how many years will ₹9000 earn ₹1080 simple interest at 4% per year? (a) 6 years (b) 3 years (c) 2 years (d) 4 years
35. 35.What is the simple interest on ₹3000 at 3% per year for 4 years? (a) ₹90 (b) ₹360 (c) ₹450 (d) ₹3360
36. 36.What is the simple interest on ₹6000 at 9% per year for 5 years? (a) ₹3240 (b) ₹540 (c) ₹2700 (d) ₹8700
37. 37.The simple interest on ₹3000 for 3 years is ₹900. What is the rate per year? (a) 30% (b) 11% (c) 9% (d) 10%
38. 38.₹5500 is invested at 11% per year simple interest. What is the amount after 2 years? (a) ₹1210 (b) ₹6105 (c) ₹6710 (d) ₹7315
39. 39.In how many years will ₹4000 earn ₹1280 simple interest at 8% per year? (a) 3 years (b) 8 years (c) 5 years (d) 4 years
40. 40.In how many years will ₹1000 earn ₹160 simple interest at 4% per year? (a) 4 years (b) 3 years (c) 5 years (d) 8 years

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