Simple Interest Worksheet for Maths Olympiad

Maths Olympiad topic 16: Simple interest · Set 820 · 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.₹5000 is invested at 4% per year simple interest. What is the amount after 2 years? (a) ₹5600 (b) ₹5200 (c) ₹5400 (d) ₹400
2. 2.What is the simple interest on ₹9500 at 2% per year for 5 years? (a) ₹950 (b) ₹10450 (c) ₹190 (d) ₹1140
3. 3.What is the simple interest on ₹10000 at 6% per year for 2 years? (a) ₹600 (b) ₹11200 (c) ₹1200 (d) ₹1800
4. 4.What is the simple interest on ₹2500 at 11% per year for 2 years? (a) ₹275 (b) ₹825 (c) ₹3050 (d) ₹550
5. 5.The simple interest on ₹9500 for 5 years is ₹4275. What is the rate per year? (a) 45% (b) 9% (c) 8% (d) 10%
6. 6.The simple interest on ₹6000 for 4 years is ₹2400. What is the rate per year? (a) 40% (b) 11% (c) 9% (d) 10%
7. 7.In how many years will ₹9500 earn ₹4275 simple interest at 9% per year? (a) 5 years (b) 6 years (c) 10 years (d) 4 years
8. 8.₹6000 is invested at 5% per year simple interest. What is the amount after 3 years? (a) ₹6300 (b) ₹6900 (c) ₹7200 (d) ₹900
9. 9.In how many years will ₹8000 earn ₹720 simple interest at 3% per year? (a) 4 years (b) 2 years (c) 6 years (d) 3 years
10. 10.The simple interest on ₹3500 for 3 years is ₹945. What is the rate per year? (a) 8% (b) 27% (c) 10% (d) 9%
11. 11.The simple interest on ₹3000 for 2 years is ₹180. What is the rate per year? (a) 4% (b) 2% (c) 6% (d) 3%
12. 12.In how many years will ₹10000 earn ₹4000 simple interest at 10% per year? (a) 5 years (b) 4 years (c) 8 years (d) 3 years
13. 13.The simple interest on ₹7000 for 5 years is ₹1400. What is the rate per year? (a) 20% (b) 5% (c) 4% (d) 3%
14. 14.The simple interest on ₹1000 for 3 years is ₹210. What is the rate per year? (a) 7% (b) 6% (c) 21% (d) 8%
15. 15.₹2500 is invested at 4% per year simple interest. What is the amount after 2 years? (a) ₹200 (b) ₹2600 (c) ₹2800 (d) ₹2700
16. 16.In how many years will ₹8000 earn ₹800 simple interest at 2% per year? (a) 5 years (b) 6 years (c) 10 years (d) 4 years
17. 17.₹8000 is invested at 10% per year simple interest. What is the amount after 4 years? (a) ₹3200 (b) ₹8800 (c) ₹11200 (d) ₹12000
18. 18.The simple interest on ₹3500 for 2 years is ₹770. What is the rate per year? (a) 10% (b) 12% (c) 11% (d) 22%
19. 19.In how many years will ₹1500 earn ₹600 simple interest at 10% per year? (a) 3 years (b) 5 years (c) 4 years (d) 8 years
20. 20.In how many years will ₹2000 earn ₹360 simple interest at 6% per year? (a) 2 years (b) 6 years (c) 3 years (d) 4 years
21. 21.In how many years will ₹5000 earn ₹3000 simple interest at 12% per year? (a) 10 years (b) 6 years (c) 5 years (d) 4 years
22. 22.What is the simple interest on ₹3000 at 11% per year for 4 years? (a) ₹4320 (b) ₹330 (c) ₹1650 (d) ₹1320
23. 23.What is the simple interest on ₹8000 at 3% per year for 3 years? (a) ₹240 (b) ₹8720 (c) ₹720 (d) ₹960
24. 24.₹2000 is invested at 6% per year simple interest. What is the amount after 2 years? (a) ₹2240 (b) ₹2120 (c) ₹2360 (d) ₹240
25. 25.In how many years will ₹8000 earn ₹3200 simple interest at 8% per year? (a) 4 years (b) 10 years (c) 5 years (d) 6 years
26. 26.The simple interest on ₹6500 for 5 years is ₹3575. What is the rate per year? (a) 10% (b) 12% (c) 11% (d) 55%
27. 27.The simple interest on ₹8000 for 4 years is ₹3200. What is the rate per year? (a) 9% (b) 40% (c) 10% (d) 11%
28. 28.The simple interest on ₹5500 for 2 years is ₹660. What is the rate per year? (a) 7% (b) 12% (c) 5% (d) 6%
29. 29.The simple interest on ₹1500 for 2 years is ₹330. What is the rate per year? (a) 11% (b) 12% (c) 22% (d) 10%
30. 30.In how many years will ₹6500 earn ₹390 simple interest at 2% per year? (a) 2 years (b) 3 years (c) 6 years (d) 4 years
31. 31.What is the simple interest on ₹2500 at 9% per year for 3 years? (a) ₹900 (b) ₹3175 (c) ₹675 (d) ₹225
32. 32.The simple interest on ₹6500 for 2 years is ₹910. What is the rate per year? (a) 8% (b) 6% (c) 14% (d) 7%
33. 33.The simple interest on ₹2500 for 5 years is ₹750. What is the rate per year? (a) 7% (b) 30% (c) 5% (d) 6%
34. 34.What is the simple interest on ₹6000 at 4% per year for 5 years? (a) ₹1440 (b) ₹240 (c) ₹7200 (d) ₹1200
35. 35.The simple interest on ₹7000 for 2 years is ₹1120. What is the rate per year? (a) 9% (b) 16% (c) 7% (d) 8%
36. 36.In how many years will ₹5500 earn ₹1485 simple interest at 9% per year? (a) 3 years (b) 6 years (c) 2 years (d) 4 years
37. 37.₹10000 is invested at 6% per year simple interest. What is the amount after 3 years? (a) ₹11800 (b) ₹10600 (c) ₹12400 (d) ₹1800
38. 38.The simple interest on ₹4000 for 3 years is ₹480. What is the rate per year? (a) 3% (b) 5% (c) 4% (d) 12%
39. 39.₹2500 is invested at 2% per year simple interest. What is the amount after 3 years? (a) ₹2550 (b) ₹150 (c) ₹2650 (d) ₹2700
40. 40.The simple interest on ₹8000 for 4 years is ₹1280. What is the rate per year? (a) 16% (b) 5% (c) 4% (d) 3%

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