Simple Interest Worksheet for Maths Olympiad

Maths Olympiad topic 16: Simple interest · Set 730 · 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 ₹3500 earn ₹700 simple interest at 4% per year? (a) 6 years (b) 4 years (c) 5 years (d) 10 years
2. 2.What is the simple interest on ₹1500 at 2% per year for 3 years? (a) ₹1590 (b) ₹30 (c) ₹120 (d) ₹90
3. 3.The simple interest on ₹10000 for 3 years is ₹2100. What is the rate per year? (a) 7% (b) 6% (c) 21% (d) 8%
4. 4.The simple interest on ₹9000 for 2 years is ₹900. What is the rate per year? (a) 5% (b) 4% (c) 10% (d) 6%
5. 5.What is the simple interest on ₹6500 at 12% per year for 3 years? (a) ₹8840 (b) ₹2340 (c) ₹3120 (d) ₹780
6. 6.What is the simple interest on ₹6000 at 5% per year for 5 years? (a) ₹1800 (b) ₹300 (c) ₹7500 (d) ₹1500
7. 7.The simple interest on ₹3000 for 3 years is ₹990. What is the rate per year? (a) 33% (b) 11% (c) 10% (d) 12%
8. 8.The simple interest on ₹9000 for 4 years is ₹1800. What is the rate per year? (a) 20% (b) 6% (c) 4% (d) 5%
9. 9.In how many years will ₹2500 earn ₹875 simple interest at 7% per year? (a) 4 years (b) 10 years (c) 6 years (d) 5 years
10. 10.₹1500 is invested at 8% per year simple interest. What is the amount after 2 years? (a) ₹240 (b) ₹1620 (c) ₹1740 (d) ₹1860
11. 11.₹8000 is invested at 4% per year simple interest. What is the amount after 4 years? (a) ₹1280 (b) ₹9280 (c) ₹8320 (d) ₹9600
12. 12.₹3000 is invested at 4% per year simple interest. What is the amount after 5 years? (a) ₹3600 (b) ₹3720 (c) ₹600 (d) ₹3120
13. 13.What is the simple interest on ₹6500 at 10% per year for 4 years? (a) ₹9100 (b) ₹650 (c) ₹3250 (d) ₹2600
14. 14.In how many years will ₹4500 earn ₹2250 simple interest at 10% per year? (a) 4 years (b) 10 years (c) 5 years (d) 6 years
15. 15.The simple interest on ₹8500 for 4 years is ₹2720. What is the rate per year? (a) 8% (b) 7% (c) 9% (d) 32%
16. 16.The simple interest on ₹2000 for 5 years is ₹1100. What is the rate per year? (a) 12% (b) 55% (c) 10% (d) 11%
17. 17.What is the simple interest on ₹4000 at 3% per year for 2 years? (a) ₹4240 (b) ₹120 (c) ₹240 (d) ₹360
18. 18.The simple interest on ₹7000 for 5 years is ₹2100. What is the rate per year? (a) 30% (b) 7% (c) 5% (d) 6%
19. 19.₹6500 is invested at 3% per year simple interest. What is the amount after 3 years? (a) ₹585 (b) ₹6695 (c) ₹7085 (d) ₹7280
20. 20.The simple interest on ₹4500 for 2 years is ₹990. What is the rate per year? (a) 10% (b) 12% (c) 11% (d) 22%
21. 21.The simple interest on ₹5000 for 2 years is ₹800. What is the rate per year? (a) 8% (b) 9% (c) 7% (d) 16%
22. 22.In how many years will ₹10000 earn ₹600 simple interest at 2% per year? (a) 2 years (b) 6 years (c) 4 years (d) 3 years
23. 23.In how many years will ₹9000 earn ₹2160 simple interest at 12% per year? (a) 2 years (b) 1 year (c) 4 years (d) 3 years
24. 24.What is the simple interest on ₹3000 at 11% per year for 2 years? (a) ₹990 (b) ₹660 (c) ₹330 (d) ₹3660
25. 25.What is the simple interest on ₹7500 at 12% per year for 2 years? (a) ₹2700 (b) ₹900 (c) ₹1800 (d) ₹9300
26. 26.₹8500 is invested at 7% per year simple interest. What is the amount after 5 years? (a) ₹2975 (b) ₹9095 (c) ₹11475 (d) ₹12070
27. 27.₹5500 is invested at 5% per year simple interest. What is the amount after 4 years? (a) ₹6600 (b) ₹6875 (c) ₹1100 (d) ₹5775
28. 28.₹1000 is invested at 11% per year simple interest. What is the amount after 2 years? (a) ₹220 (b) ₹1330 (c) ₹1110 (d) ₹1220
29. 29.The simple interest on ₹3500 for 4 years is ₹840. What is the rate per year? (a) 24% (b) 7% (c) 5% (d) 6%
30. 30.In how many years will ₹6500 earn ₹520 simple interest at 4% per year? (a) 3 years (b) 1 year (c) 4 years (d) 2 years
31. 31.₹7500 is invested at 8% per year simple interest. What is the amount after 3 years? (a) ₹9300 (b) ₹8100 (c) ₹1800 (d) ₹9900
32. 32.In how many years will ₹9000 earn ₹900 simple interest at 2% per year? (a) 10 years (b) 5 years (c) 4 years (d) 6 years
33. 33.What is the simple interest on ₹5500 at 2% per year for 2 years? (a) ₹5720 (b) ₹110 (c) ₹330 (d) ₹220
34. 34.In how many years will ₹1000 earn ₹440 simple interest at 11% per year? (a) 5 years (b) 4 years (c) 3 years (d) 8 years
35. 35.In how many years will ₹7000 earn ₹560 simple interest at 4% per year? (a) 1 year (b) 4 years (c) 2 years (d) 3 years
36. 36.₹4000 is invested at 7% per year simple interest. What is the amount after 5 years? (a) ₹4280 (b) ₹5680 (c) ₹1400 (d) ₹5400
37. 37.What is the simple interest on ₹9000 at 6% per year for 2 years? (a) ₹540 (b) ₹10080 (c) ₹1080 (d) ₹1620
38. 38.₹2500 is invested at 7% per year simple interest. What is the amount after 4 years? (a) ₹3375 (b) ₹700 (c) ₹2675 (d) ₹3200
39. 39.What is the simple interest on ₹9500 at 5% per year for 2 years? (a) ₹475 (b) ₹950 (c) ₹1425 (d) ₹10450
40. 40.What is the simple interest on ₹3000 at 5% per year for 4 years? (a) ₹150 (b) ₹3600 (c) ₹750 (d) ₹600

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