Simple Interest Worksheet for Maths Olympiad

Maths Olympiad topic 16: Simple interest · Set 14 · 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 ₹1500 earn ₹450 simple interest at 6% per year? (a) 6 years (b) 10 years (c) 4 years (d) 5 years
2. 2.₹2500 is invested at 12% per year simple interest. What is the amount after 5 years? (a) ₹4000 (b) ₹2800 (c) ₹4300 (d) ₹1500
3. 3.The simple interest on ₹2000 for 4 years is ₹160. What is the rate per year? (a) 3% (b) 1% (c) 8% (d) 2%
4. 4.In how many years will ₹4000 earn ₹720 simple interest at 6% per year? (a) 4 years (b) 2 years (c) 6 years (d) 3 years
5. 5.What is the simple interest on ₹7000 at 9% per year for 3 years? (a) ₹630 (b) ₹1890 (c) ₹8890 (d) ₹2520
6. 6.₹1500 is invested at 7% per year simple interest. What is the amount after 4 years? (a) ₹2025 (b) ₹1920 (c) ₹420 (d) ₹1605
7. 7.What is the simple interest on ₹10000 at 12% per year for 2 years? (a) ₹12400 (b) ₹1200 (c) ₹3600 (d) ₹2400
8. 8.What is the simple interest on ₹6000 at 2% per year for 2 years? (a) ₹120 (b) ₹240 (c) ₹360 (d) ₹6240
9. 9.In how many years will ₹1500 earn ₹750 simple interest at 10% per year? (a) 10 years (b) 5 years (c) 6 years (d) 4 years
10. 10.₹9000 is invested at 11% per year simple interest. What is the amount after 4 years? (a) ₹3960 (b) ₹9990 (c) ₹13950 (d) ₹12960
11. 11.In how many years will ₹3500 earn ₹1120 simple interest at 8% per year? (a) 8 years (b) 5 years (c) 4 years (d) 3 years
12. 12.In how many years will ₹7000 earn ₹2310 simple interest at 11% per year? (a) 4 years (b) 6 years (c) 2 years (d) 3 years
13. 13.₹7000 is invested at 8% per year simple interest. What is the amount after 3 years? (a) ₹8680 (b) ₹7560 (c) ₹9240 (d) ₹1680
14. 14.In how many years will ₹8500 earn ₹3740 simple interest at 11% per year? (a) 5 years (b) 8 years (c) 3 years (d) 4 years
15. 15.The simple interest on ₹10000 for 2 years is ₹600. What is the rate per year? (a) 6% (b) 3% (c) 2% (d) 4%
16. 16.In how many years will ₹4000 earn ₹1080 simple interest at 9% per year? (a) 2 years (b) 4 years (c) 6 years (d) 3 years
17. 17.₹1500 is invested at 12% per year simple interest. What is the amount after 4 years? (a) ₹720 (b) ₹2400 (c) ₹1680 (d) ₹2220
18. 18.In how many years will ₹8500 earn ₹1870 simple interest at 11% per year? (a) 1 year (b) 4 years (c) 3 years (d) 2 years
19. 19.What is the simple interest on ₹6000 at 4% per year for 4 years? (a) ₹960 (b) ₹1200 (c) ₹240 (d) ₹6960
20. 20.The simple interest on ₹2500 for 4 years is ₹1000. What is the rate per year? (a) 9% (b) 10% (c) 40% (d) 11%
21. 21.In how many years will ₹8000 earn ₹1280 simple interest at 4% per year? (a) 8 years (b) 3 years (c) 4 years (d) 5 years
22. 22.In how many years will ₹2500 earn ₹525 simple interest at 7% per year? (a) 2 years (b) 3 years (c) 4 years (d) 6 years
23. 23.₹3500 is invested at 5% per year simple interest. What is the amount after 2 years? (a) ₹350 (b) ₹4025 (c) ₹3850 (d) ₹3675
24. 24.₹8500 is invested at 6% per year simple interest. What is the amount after 3 years? (a) ₹1530 (b) ₹9010 (c) ₹10030 (d) ₹10540
25. 25.The simple interest on ₹2500 for 5 years is ₹1125. What is the rate per year? (a) 8% (b) 9% (c) 45% (d) 10%
26. 26.The simple interest on ₹2000 for 4 years is ₹240. What is the rate per year? (a) 3% (b) 2% (c) 4% (d) 12%
27. 27.The simple interest on ₹3000 for 5 years is ₹1200. What is the rate per year? (a) 9% (b) 8% (c) 7% (d) 40%
28. 28.In how many years will ₹6500 earn ₹1300 simple interest at 5% per year? (a) 4 years (b) 5 years (c) 3 years (d) 8 years
29. 29.What is the simple interest on ₹3500 at 6% per year for 5 years? (a) ₹210 (b) ₹4550 (c) ₹1050 (d) ₹1260
30. 30.What is the simple interest on ₹6000 at 5% per year for 2 years? (a) ₹300 (b) ₹600 (c) ₹900 (d) ₹6600
31. 31.What is the simple interest on ₹1000 at 4% per year for 4 years? (a) ₹160 (b) ₹40 (c) ₹200 (d) ₹1160
32. 32.The simple interest on ₹3500 for 5 years is ₹1225. What is the rate per year? (a) 8% (b) 7% (c) 35% (d) 6%
33. 33.What is the simple interest on ₹2500 at 2% per year for 2 years? (a) ₹2600 (b) ₹150 (c) ₹50 (d) ₹100
34. 34.What is the simple interest on ₹1000 at 6% per year for 3 years? (a) ₹180 (b) ₹60 (c) ₹240 (d) ₹1180
35. 35.₹6500 is invested at 5% per year simple interest. What is the amount after 2 years? (a) ₹7150 (b) ₹6825 (c) ₹7475 (d) ₹650
36. 36.What is the simple interest on ₹2000 at 11% per year for 2 years? (a) ₹660 (b) ₹2440 (c) ₹220 (d) ₹440
37. 37.The simple interest on ₹4500 for 2 years is ₹900. What is the rate per year? (a) 11% (b) 10% (c) 20% (d) 9%
38. 38.₹7500 is invested at 11% per year simple interest. What is the amount after 2 years? (a) ₹9975 (b) ₹9150 (c) ₹8325 (d) ₹1650
39. 39.What is the simple interest on ₹1500 at 12% per year for 2 years? (a) ₹360 (b) ₹1860 (c) ₹180 (d) ₹540
40. 40.In how many years will ₹8500 earn ₹2295 simple interest at 9% per year? (a) 2 years (b) 6 years (c) 3 years (d) 4 years

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