Simple Interest Worksheet for Maths Olympiad

Maths Olympiad topic 16: Simple interest · Set 215 · 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.What is the simple interest on ₹9000 at 4% per year for 2 years? (a) ₹9720 (b) ₹1080 (c) ₹360 (d) ₹720
2. 2.The simple interest on ₹10000 for 2 years is ₹1800. What is the rate per year? (a) 18% (b) 8% (c) 9% (d) 10%
3. 3.In how many years will ₹1500 earn ₹300 simple interest at 5% per year? (a) 5 years (b) 8 years (c) 4 years (d) 3 years
4. 4.The simple interest on ₹8000 for 2 years is ₹1440. What is the rate per year? (a) 8% (b) 18% (c) 10% (d) 9%
5. 5.What is the simple interest on ₹4500 at 9% per year for 3 years? (a) ₹5715 (b) ₹405 (c) ₹1620 (d) ₹1215
6. 6.In how many years will ₹10000 earn ₹3000 simple interest at 10% per year? (a) 4 years (b) 6 years (c) 2 years (d) 3 years
7. 7.In how many years will ₹9500 earn ₹950 simple interest at 2% per year? (a) 5 years (b) 4 years (c) 10 years (d) 6 years
8. 8.What is the simple interest on ₹8000 at 9% per year for 3 years? (a) ₹2880 (b) ₹10160 (c) ₹2160 (d) ₹720
9. 9.In how many years will ₹8000 earn ₹2800 simple interest at 7% per year? (a) 6 years (b) 10 years (c) 4 years (d) 5 years
10. 10.The simple interest on ₹3500 for 3 years is ₹945. What is the rate per year? (a) 27% (b) 9% (c) 8% (d) 10%
11. 11.In how many years will ₹6000 earn ₹2400 simple interest at 10% per year? (a) 8 years (b) 5 years (c) 3 years (d) 4 years
12. 12.₹5000 is invested at 3% per year simple interest. What is the amount after 2 years? (a) ₹300 (b) ₹5450 (c) ₹5300 (d) ₹5150
13. 13.In how many years will ₹7000 earn ₹3850 simple interest at 11% per year? (a) 6 years (b) 4 years (c) 10 years (d) 5 years
14. 14.What is the simple interest on ₹8000 at 11% per year for 5 years? (a) ₹880 (b) ₹12400 (c) ₹4400 (d) ₹5280
15. 15.What is the simple interest on ₹9500 at 2% per year for 5 years? (a) ₹10450 (b) ₹1140 (c) ₹190 (d) ₹950
16. 16.What is the simple interest on ₹1500 at 2% per year for 4 years? (a) ₹30 (b) ₹120 (c) ₹1620 (d) ₹150
17. 17.The simple interest on ₹4000 for 3 years is ₹1200. What is the rate per year? (a) 9% (b) 10% (c) 30% (d) 11%
18. 18.In how many years will ₹10000 earn ₹800 simple interest at 4% per year? (a) 2 years (b) 1 year (c) 3 years (d) 4 years
19. 19.The simple interest on ₹6500 for 5 years is ₹3250. What is the rate per year? (a) 11% (b) 50% (c) 9% (d) 10%
20. 20.What is the simple interest on ₹6500 at 10% per year for 2 years? (a) ₹650 (b) ₹7800 (c) ₹1950 (d) ₹1300
21. 21.What is the simple interest on ₹1000 at 6% per year for 3 years? (a) ₹1180 (b) ₹240 (c) ₹180 (d) ₹60
22. 22.What is the simple interest on ₹3500 at 7% per year for 2 years? (a) ₹3990 (b) ₹490 (c) ₹245 (d) ₹735
23. 23.What is the simple interest on ₹7500 at 4% per year for 5 years? (a) ₹1500 (b) ₹9000 (c) ₹1800 (d) ₹300
24. 24.₹3500 is invested at 6% per year simple interest. What is the amount after 2 years? (a) ₹4130 (b) ₹420 (c) ₹3710 (d) ₹3920
25. 25.The simple interest on ₹8000 for 2 years is ₹1120. What is the rate per year? (a) 8% (b) 6% (c) 14% (d) 7%
26. 26.In how many years will ₹5500 earn ₹495 simple interest at 3% per year? (a) 6 years (b) 2 years (c) 3 years (d) 4 years
27. 27.The simple interest on ₹7500 for 4 years is ₹2700. What is the rate per year? (a) 8% (b) 9% (c) 10% (d) 36%
28. 28.The simple interest on ₹1500 for 3 years is ₹360. What is the rate per year? (a) 8% (b) 9% (c) 24% (d) 7%
29. 29.In how many years will ₹4000 earn ₹720 simple interest at 6% per year? (a) 2 years (b) 3 years (c) 6 years (d) 4 years
30. 30.In how many years will ₹1500 earn ₹600 simple interest at 8% per year? (a) 5 years (b) 4 years (c) 6 years (d) 10 years
31. 31.What is the simple interest on ₹4500 at 3% per year for 4 years? (a) ₹540 (b) ₹135 (c) ₹5040 (d) ₹675
32. 32.In how many years will ₹2000 earn ₹120 simple interest at 2% per year? (a) 4 years (b) 2 years (c) 3 years (d) 6 years
33. 33.₹6000 is invested at 2% per year simple interest. What is the amount after 3 years? (a) ₹6480 (b) ₹6360 (c) ₹6120 (d) ₹360
34. 34.₹8500 is invested at 12% per year simple interest. What is the amount after 5 years? (a) ₹5100 (b) ₹9520 (c) ₹13600 (d) ₹14620
35. 35.The simple interest on ₹1500 for 3 years is ₹540. What is the rate per year? (a) 11% (b) 36% (c) 12% (d) 13%
36. 36.What is the simple interest on ₹5500 at 5% per year for 4 years? (a) ₹6600 (b) ₹275 (c) ₹1375 (d) ₹1100
37. 37.In how many years will ₹3000 earn ₹480 simple interest at 4% per year? (a) 4 years (b) 5 years (c) 8 years (d) 3 years
38. 38.₹5000 is invested at 12% per year simple interest. What is the amount after 2 years? (a) ₹6800 (b) ₹6200 (c) ₹5600 (d) ₹1200
39. 39.What is the simple interest on ₹1500 at 12% per year for 4 years? (a) ₹180 (b) ₹720 (c) ₹900 (d) ₹2220
40. 40.₹1500 is invested at 4% per year simple interest. What is the amount after 5 years? (a) ₹1860 (b) ₹300 (c) ₹1560 (d) ₹1800

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