Simple Interest Worksheet for Maths Olympiad

Maths Olympiad topic 16: Simple interest · Set 468 · 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.₹8000 is invested at 7% per year simple interest. What is the amount after 4 years? (a) ₹10800 (b) ₹2240 (c) ₹10240 (d) ₹8560
2. 2.In how many years will ₹9000 earn ₹4050 simple interest at 9% per year? (a) 10 years (b) 4 years (c) 5 years (d) 6 years
3. 3.What is the simple interest on ₹5000 at 4% per year for 3 years? (a) ₹200 (b) ₹800 (c) ₹600 (d) ₹5600
4. 4.What is the simple interest on ₹5500 at 2% per year for 3 years? (a) ₹330 (b) ₹110 (c) ₹5830 (d) ₹440
5. 5.The simple interest on ₹3500 for 5 years is ₹525. What is the rate per year? (a) 15% (b) 4% (c) 3% (d) 2%
6. 6.What is the simple interest on ₹2000 at 7% per year for 2 years? (a) ₹2280 (b) ₹420 (c) ₹280 (d) ₹140
7. 7.What is the simple interest on ₹5000 at 12% per year for 2 years? (a) ₹6200 (b) ₹600 (c) ₹1800 (d) ₹1200
8. 8.The simple interest on ₹7500 for 4 years is ₹1500. What is the rate per year? (a) 5% (b) 20% (c) 6% (d) 4%
9. 9.What is the simple interest on ₹3500 at 12% per year for 2 years? (a) ₹420 (b) ₹1260 (c) ₹4340 (d) ₹840
10. 10.₹1000 is invested at 12% per year simple interest. What is the amount after 3 years? (a) ₹360 (b) ₹1360 (c) ₹1120 (d) ₹1480
11. 11.What is the simple interest on ₹7000 at 11% per year for 5 years? (a) ₹4620 (b) ₹3850 (c) ₹10850 (d) ₹770
12. 12.In how many years will ₹10000 earn ₹400 simple interest at 2% per year? (a) 1 year (b) 3 years (c) 2 years (d) 4 years
13. 13.In how many years will ₹3000 earn ₹300 simple interest at 2% per year? (a) 5 years (b) 6 years (c) 4 years (d) 10 years
14. 14.The simple interest on ₹2500 for 4 years is ₹200. What is the rate per year? (a) 2% (b) 3% (c) 8% (d) 1%
15. 15.₹10000 is invested at 8% per year simple interest. What is the amount after 4 years? (a) ₹10800 (b) ₹14000 (c) ₹3200 (d) ₹13200
16. 16.The simple interest on ₹2000 for 4 years is ₹640. What is the rate per year? (a) 8% (b) 9% (c) 7% (d) 32%
17. 17.The simple interest on ₹9000 for 2 years is ₹1440. What is the rate per year? (a) 16% (b) 7% (c) 9% (d) 8%
18. 18.What is the simple interest on ₹6000 at 5% per year for 3 years? (a) ₹6900 (b) ₹900 (c) ₹300 (d) ₹1200
19. 19.In how many years will ₹2000 earn ₹640 simple interest at 8% per year? (a) 4 years (b) 8 years (c) 5 years (d) 3 years
20. 20.In how many years will ₹2500 earn ₹450 simple interest at 6% per year? (a) 2 years (b) 3 years (c) 6 years (d) 4 years
21. 21.The simple interest on ₹8500 for 3 years is ₹2295. What is the rate per year? (a) 8% (b) 9% (c) 10% (d) 27%
22. 22.In how many years will ₹3000 earn ₹1080 simple interest at 9% per year? (a) 3 years (b) 8 years (c) 5 years (d) 4 years
23. 23.In how many years will ₹8000 earn ₹2880 simple interest at 12% per year? (a) 2 years (b) 4 years (c) 6 years (d) 3 years
24. 24.What is the simple interest on ₹1000 at 12% per year for 3 years? (a) ₹1360 (b) ₹360 (c) ₹480 (d) ₹120
25. 25.In how many years will ₹2500 earn ₹100 simple interest at 2% per year? (a) 2 years (b) 4 years (c) 3 years (d) 1 year
26. 26.The simple interest on ₹1000 for 4 years is ₹120. What is the rate per year? (a) 3% (b) 4% (c) 12% (d) 2%
27. 27.What is the simple interest on ₹5500 at 4% per year for 3 years? (a) ₹880 (b) ₹220 (c) ₹660 (d) ₹6160
28. 28.The simple interest on ₹4000 for 4 years is ₹1120. What is the rate per year? (a) 28% (b) 7% (c) 6% (d) 8%
29. 29.₹1000 is invested at 7% per year simple interest. What is the amount after 3 years? (a) ₹1070 (b) ₹210 (c) ₹1210 (d) ₹1280
30. 30.What is the simple interest on ₹4500 at 7% per year for 5 years? (a) ₹315 (b) ₹1575 (c) ₹6075 (d) ₹1890
31. 31.What is the simple interest on ₹7000 at 10% per year for 3 years? (a) ₹9100 (b) ₹700 (c) ₹2800 (d) ₹2100
32. 32.What is the simple interest on ₹3500 at 3% per year for 3 years? (a) ₹3815 (b) ₹105 (c) ₹315 (d) ₹420
33. 33.What is the simple interest on ₹1000 at 5% per year for 3 years? (a) ₹200 (b) ₹1150 (c) ₹50 (d) ₹150
34. 34.What is the simple interest on ₹4500 at 5% per year for 2 years? (a) ₹4950 (b) ₹675 (c) ₹450 (d) ₹225
35. 35.What is the simple interest on ₹4500 at 7% per year for 4 years? (a) ₹315 (b) ₹5760 (c) ₹1260 (d) ₹1575
36. 36.The simple interest on ₹5500 for 3 years is ₹1980. What is the rate per year? (a) 36% (b) 12% (c) 11% (d) 13%
37. 37.What is the simple interest on ₹6000 at 7% per year for 5 years? (a) ₹2520 (b) ₹2100 (c) ₹420 (d) ₹8100
38. 38.The simple interest on ₹5500 for 4 years is ₹2200. What is the rate per year? (a) 9% (b) 10% (c) 40% (d) 11%
39. 39.What is the simple interest on ₹7500 at 9% per year for 5 years? (a) ₹4050 (b) ₹675 (c) ₹10875 (d) ₹3375
40. 40.₹1500 is invested at 3% per year simple interest. What is the amount after 5 years? (a) ₹1725 (b) ₹1770 (c) ₹1545 (d) ₹225

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