Simple Interest Worksheet for Maths Olympiad

Maths Olympiad topic 16: Simple interest · Set 880 · 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 ₹1000 earn ₹140 simple interest at 7% per year? (a) 2 years (b) 1 year (c) 4 years (d) 3 years
2. 2.The simple interest on ₹10000 for 4 years is ₹3600. What is the rate per year? (a) 9% (b) 36% (c) 8% (d) 10%
3. 3.The simple interest on ₹6000 for 5 years is ₹1200. What is the rate per year? (a) 3% (b) 5% (c) 4% (d) 20%
4. 4.₹5500 is invested at 7% per year simple interest. What is the amount after 3 years? (a) ₹6655 (b) ₹1155 (c) ₹7040 (d) ₹5885
5. 5.The simple interest on ₹5500 for 2 years is ₹440. What is the rate per year? (a) 3% (b) 8% (c) 5% (d) 4%
6. 6.₹8500 is invested at 2% per year simple interest. What is the amount after 2 years? (a) ₹9010 (b) ₹8840 (c) ₹340 (d) ₹8670
7. 7.In how many years will ₹8000 earn ₹1600 simple interest at 4% per year? (a) 10 years (b) 5 years (c) 4 years (d) 6 years
8. 8.₹1500 is invested at 8% per year simple interest. What is the amount after 3 years? (a) ₹1980 (b) ₹360 (c) ₹1860 (d) ₹1620
9. 9.What is the simple interest on ₹3500 at 11% per year for 4 years? (a) ₹5040 (b) ₹1540 (c) ₹1925 (d) ₹385
10. 10.₹5500 is invested at 10% per year simple interest. What is the amount after 2 years? (a) ₹7150 (b) ₹6600 (c) ₹1100 (d) ₹6050
11. 11.The simple interest on ₹10000 for 5 years is ₹1500. What is the rate per year? (a) 2% (b) 3% (c) 4% (d) 15%
12. 12.₹9000 is invested at 12% per year simple interest. What is the amount after 5 years? (a) ₹14400 (b) ₹15480 (c) ₹5400 (d) ₹10080
13. 13.In how many years will ₹7000 earn ₹980 simple interest at 7% per year? (a) 3 years (b) 2 years (c) 4 years (d) 1 year
14. 14.What is the simple interest on ₹5000 at 6% per year for 5 years? (a) ₹1800 (b) ₹300 (c) ₹1500 (d) ₹6500
15. 15.₹3500 is invested at 2% per year simple interest. What is the amount after 4 years? (a) ₹280 (b) ₹3570 (c) ₹3780 (d) ₹3850
16. 16.₹7000 is invested at 9% per year simple interest. What is the amount after 4 years? (a) ₹2520 (b) ₹9520 (c) ₹10150 (d) ₹7630
17. 17.₹8500 is invested at 12% per year simple interest. What is the amount after 3 years? (a) ₹3060 (b) ₹12580 (c) ₹11560 (d) ₹9520
18. 18.In how many years will ₹2000 earn ₹960 simple interest at 12% per year? (a) 3 years (b) 8 years (c) 4 years (d) 5 years
19. 19.The simple interest on ₹6000 for 3 years is ₹2160. What is the rate per year? (a) 36% (b) 13% (c) 11% (d) 12%
20. 20.₹10000 is invested at 12% per year simple interest. What is the amount after 4 years? (a) ₹16000 (b) ₹4800 (c) ₹11200 (d) ₹14800
21. 21.The simple interest on ₹6000 for 2 years is ₹840. What is the rate per year? (a) 8% (b) 6% (c) 7% (d) 14%
22. 22.What is the simple interest on ₹6500 at 2% per year for 3 years? (a) ₹520 (b) ₹390 (c) ₹130 (d) ₹6890
23. 23.₹1000 is invested at 12% per year simple interest. What is the amount after 2 years? (a) ₹240 (b) ₹1120 (c) ₹1360 (d) ₹1240
24. 24.The simple interest on ₹2500 for 2 years is ₹550. What is the rate per year? (a) 10% (b) 22% (c) 12% (d) 11%
25. 25.₹7000 is invested at 7% per year simple interest. What is the amount after 3 years? (a) ₹8960 (b) ₹1470 (c) ₹7490 (d) ₹8470
26. 26.What is the simple interest on ₹2500 at 9% per year for 2 years? (a) ₹675 (b) ₹2950 (c) ₹225 (d) ₹450
27. 27.The simple interest on ₹3000 for 4 years is ₹240. What is the rate per year? (a) 1% (b) 2% (c) 3% (d) 8%
28. 28.The simple interest on ₹5000 for 2 years is ₹1000. What is the rate per year? (a) 11% (b) 10% (c) 9% (d) 20%
29. 29.What is the simple interest on ₹7500 at 4% per year for 5 years? (a) ₹9000 (b) ₹1500 (c) ₹300 (d) ₹1800
30. 30.What is the simple interest on ₹6000 at 2% per year for 4 years? (a) ₹6480 (b) ₹600 (c) ₹480 (d) ₹120
31. 31.In how many years will ₹6500 earn ₹2340 simple interest at 9% per year? (a) 5 years (b) 8 years (c) 4 years (d) 3 years
32. 32.What is the simple interest on ₹6000 at 2% per year for 5 years? (a) ₹120 (b) ₹720 (c) ₹6600 (d) ₹600
33. 33.What is the simple interest on ₹8000 at 6% per year for 4 years? (a) ₹480 (b) ₹9920 (c) ₹1920 (d) ₹2400
34. 34.The simple interest on ₹4000 for 2 years is ₹160. What is the rate per year? (a) 2% (b) 3% (c) 1% (d) 4%
35. 35.₹9500 is invested at 2% per year simple interest. What is the amount after 5 years? (a) ₹10450 (b) ₹10640 (c) ₹9690 (d) ₹950
36. 36.The simple interest on ₹5000 for 4 years is ₹400. What is the rate per year? (a) 1% (b) 3% (c) 2% (d) 8%
37. 37.The simple interest on ₹10000 for 4 years is ₹4800. What is the rate per year? (a) 11% (b) 48% (c) 12% (d) 13%
38. 38.What is the simple interest on ₹8000 at 8% per year for 3 years? (a) ₹9920 (b) ₹640 (c) ₹1920 (d) ₹2560
39. 39.In how many years will ₹2000 earn ₹240 simple interest at 6% per year? (a) 1 year (b) 3 years (c) 4 years (d) 2 years
40. 40.₹2000 is invested at 8% per year simple interest. What is the amount after 3 years? (a) ₹480 (b) ₹2640 (c) ₹2160 (d) ₹2480

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