Simple Interest Worksheet for Maths Olympiad

Maths Olympiad topic 16: Simple interest · Set 600 · 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 ₹9000 for 4 years is ₹2880. What is the rate per year? (a) 9% (b) 32% (c) 7% (d) 8%
2. 2.In how many years will ₹9500 earn ₹380 simple interest at 2% per year? (a) 3 years (b) 4 years (c) 2 years (d) 1 year
3. 3.What is the simple interest on ₹1500 at 8% per year for 5 years? (a) ₹120 (b) ₹720 (c) ₹2100 (d) ₹600
4. 4.What is the simple interest on ₹9000 at 3% per year for 3 years? (a) ₹810 (b) ₹1080 (c) ₹270 (d) ₹9810
5. 5.In how many years will ₹2000 earn ₹800 simple interest at 8% per year? (a) 4 years (b) 6 years (c) 5 years (d) 10 years
6. 6.₹3000 is invested at 5% per year simple interest. What is the amount after 5 years? (a) ₹3150 (b) ₹3750 (c) ₹3900 (d) ₹750
7. 7.In how many years will ₹7500 earn ₹1650 simple interest at 11% per year? (a) 2 years (b) 3 years (c) 4 years (d) 1 year
8. 8.The simple interest on ₹1000 for 4 years is ₹400. What is the rate per year? (a) 40% (b) 9% (c) 11% (d) 10%
9. 9.₹2500 is invested at 3% per year simple interest. What is the amount after 3 years? (a) ₹2800 (b) ₹225 (c) ₹2575 (d) ₹2725
10. 10.The simple interest on ₹3500 for 5 years is ₹1575. What is the rate per year? (a) 9% (b) 45% (c) 10% (d) 8%
11. 11.What is the simple interest on ₹7500 at 9% per year for 5 years? (a) ₹4050 (b) ₹3375 (c) ₹675 (d) ₹10875
12. 12.In how many years will ₹3500 earn ₹350 simple interest at 2% per year? (a) 10 years (b) 6 years (c) 4 years (d) 5 years
13. 13.₹3000 is invested at 2% per year simple interest. What is the amount after 2 years? (a) ₹3060 (b) ₹120 (c) ₹3120 (d) ₹3180
14. 14.What is the simple interest on ₹4000 at 5% per year for 3 years? (a) ₹4600 (b) ₹200 (c) ₹800 (d) ₹600
15. 15.In how many years will ₹8500 earn ₹2295 simple interest at 9% per year? (a) 4 years (b) 6 years (c) 2 years (d) 3 years
16. 16.In how many years will ₹6000 earn ₹3000 simple interest at 10% per year? (a) 6 years (b) 5 years (c) 10 years (d) 4 years
17. 17.The simple interest on ₹8500 for 4 years is ₹4080. What is the rate per year? (a) 12% (b) 11% (c) 13% (d) 48%
18. 18.What is the simple interest on ₹6000 at 9% per year for 3 years? (a) ₹1620 (b) ₹7620 (c) ₹2160 (d) ₹540
19. 19.In how many years will ₹8000 earn ₹480 simple interest at 3% per year? (a) 1 year (b) 4 years (c) 3 years (d) 2 years
20. 20.₹10000 is invested at 8% per year simple interest. What is the amount after 2 years? (a) ₹10800 (b) ₹12400 (c) ₹1600 (d) ₹11600
21. 21.In how many years will ₹8500 earn ₹2805 simple interest at 11% per year? (a) 6 years (b) 2 years (c) 4 years (d) 3 years
22. 22.In how many years will ₹3000 earn ₹900 simple interest at 10% per year? (a) 3 years (b) 2 years (c) 6 years (d) 4 years
23. 23.What is the simple interest on ₹7000 at 3% per year for 2 years? (a) ₹630 (b) ₹420 (c) ₹7420 (d) ₹210
24. 24.₹8000 is invested at 8% per year simple interest. What is the amount after 5 years? (a) ₹11840 (b) ₹8640 (c) ₹3200 (d) ₹11200
25. 25.What is the simple interest on ₹3500 at 8% per year for 4 years? (a) ₹1400 (b) ₹280 (c) ₹1120 (d) ₹4620
26. 26.In how many years will ₹7000 earn ₹1050 simple interest at 3% per year? (a) 5 years (b) 6 years (c) 10 years (d) 4 years
27. 27.What is the simple interest on ₹8000 at 4% per year for 3 years? (a) ₹1280 (b) ₹960 (c) ₹320 (d) ₹8960
28. 28.₹5000 is invested at 3% per year simple interest. What is the amount after 3 years? (a) ₹5450 (b) ₹450 (c) ₹5150 (d) ₹5600
29. 29.₹2000 is invested at 3% per year simple interest. What is the amount after 4 years? (a) ₹2060 (b) ₹2300 (c) ₹2240 (d) ₹240
30. 30.₹7500 is invested at 4% per year simple interest. What is the amount after 2 years? (a) ₹7800 (b) ₹8100 (c) ₹600 (d) ₹8400
31. 31.What is the simple interest on ₹6500 at 8% per year for 4 years? (a) ₹2600 (b) ₹2080 (c) ₹8580 (d) ₹520
32. 32.₹9500 is invested at 10% per year simple interest. What is the amount after 2 years? (a) ₹1900 (b) ₹11400 (c) ₹10450 (d) ₹12350
33. 33.The simple interest on ₹4000 for 2 years is ₹160. What is the rate per year? (a) 3% (b) 1% (c) 4% (d) 2%
34. 34.The simple interest on ₹7500 for 2 years is ₹1500. What is the rate per year? (a) 20% (b) 11% (c) 9% (d) 10%
35. 35.In how many years will ₹1000 earn ₹250 simple interest at 5% per year? (a) 10 years (b) 5 years (c) 6 years (d) 4 years
36. 36.The simple interest on ₹10000 for 2 years is ₹2200. What is the rate per year? (a) 11% (b) 12% (c) 10% (d) 22%
37. 37.What is the simple interest on ₹1500 at 11% per year for 3 years? (a) ₹660 (b) ₹495 (c) ₹165 (d) ₹1995
38. 38.₹6000 is invested at 5% per year simple interest. What is the amount after 5 years? (a) ₹7500 (b) ₹6300 (c) ₹1500 (d) ₹7800
39. 39.What is the simple interest on ₹5500 at 9% per year for 3 years? (a) ₹6985 (b) ₹1980 (c) ₹1485 (d) ₹495
40. 40.In how many years will ₹5000 earn ₹500 simple interest at 2% per year? (a) 5 years (b) 10 years (c) 4 years (d) 6 years

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