Simple Interest Worksheet for Maths Olympiad

Maths Olympiad topic 16: Simple interest · Set 141 · 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 ₹5500 for 4 years is ₹1100. What is the rate per year? (a) 20% (b) 6% (c) 5% (d) 4%
2. 2.In how many years will ₹1000 earn ₹220 simple interest at 11% per year? (a) 3 years (b) 2 years (c) 1 year (d) 4 years
3. 3.The simple interest on ₹1000 for 2 years is ₹100. What is the rate per year? (a) 4% (b) 10% (c) 5% (d) 6%
4. 4.₹8500 is invested at 8% per year simple interest. What is the amount after 4 years? (a) ₹11220 (b) ₹11900 (c) ₹2720 (d) ₹9180
5. 5.In how many years will ₹6500 earn ₹2275 simple interest at 7% per year? (a) 5 years (b) 4 years (c) 6 years (d) 10 years
6. 6.What is the simple interest on ₹2000 at 12% per year for 5 years? (a) ₹1200 (b) ₹240 (c) ₹3200 (d) ₹1440
7. 7.What is the simple interest on ₹5500 at 5% per year for 2 years? (a) ₹825 (b) ₹275 (c) ₹6050 (d) ₹550
8. 8.In how many years will ₹5500 earn ₹3025 simple interest at 11% per year? (a) 5 years (b) 4 years (c) 6 years (d) 10 years
9. 9.What is the simple interest on ₹3000 at 3% per year for 5 years? (a) ₹540 (b) ₹90 (c) ₹450 (d) ₹3450
10. 10.₹2500 is invested at 12% per year simple interest. What is the amount after 3 years? (a) ₹2800 (b) ₹3700 (c) ₹900 (d) ₹3400
11. 11.The simple interest on ₹4000 for 3 years is ₹840. What is the rate per year? (a) 6% (b) 8% (c) 21% (d) 7%
12. 12.The simple interest on ₹9500 for 2 years is ₹1330. What is the rate per year? (a) 7% (b) 6% (c) 14% (d) 8%
13. 13.The simple interest on ₹9500 for 3 years is ₹1140. What is the rate per year? (a) 4% (b) 3% (c) 5% (d) 12%
14. 14.In how many years will ₹9500 earn ₹760 simple interest at 4% per year? (a) 2 years (b) 3 years (c) 1 year (d) 4 years
15. 15.₹6000 is invested at 10% per year simple interest. What is the amount after 3 years? (a) ₹8400 (b) ₹1800 (c) ₹6600 (d) ₹7800
16. 16.In how many years will ₹7500 earn ₹2400 simple interest at 8% per year? (a) 8 years (b) 4 years (c) 5 years (d) 3 years
17. 17.What is the simple interest on ₹6000 at 9% per year for 5 years? (a) ₹2700 (b) ₹540 (c) ₹8700 (d) ₹3240
18. 18.What is the simple interest on ₹4500 at 11% per year for 4 years? (a) ₹495 (b) ₹1980 (c) ₹2475 (d) ₹6480
19. 19.What is the simple interest on ₹3000 at 6% per year for 5 years? (a) ₹900 (b) ₹3900 (c) ₹1080 (d) ₹180
20. 20.What is the simple interest on ₹10000 at 4% per year for 3 years? (a) ₹1200 (b) ₹1600 (c) ₹400 (d) ₹11200
21. 21.What is the simple interest on ₹1500 at 11% per year for 5 years? (a) ₹990 (b) ₹825 (c) ₹165 (d) ₹2325
22. 22.What is the simple interest on ₹7500 at 7% per year for 4 years? (a) ₹525 (b) ₹2625 (c) ₹2100 (d) ₹9600
23. 23.₹5000 is invested at 2% per year simple interest. What is the amount after 5 years? (a) ₹5100 (b) ₹500 (c) ₹5500 (d) ₹5600
24. 24.₹5000 is invested at 3% per year simple interest. What is the amount after 4 years? (a) ₹5600 (b) ₹600 (c) ₹5750 (d) ₹5150
25. 25.₹3500 is invested at 7% per year simple interest. What is the amount after 2 years? (a) ₹490 (b) ₹3745 (c) ₹3990 (d) ₹4235
26. 26.In how many years will ₹8500 earn ₹3060 simple interest at 9% per year? (a) 8 years (b) 4 years (c) 3 years (d) 5 years
27. 27.₹2500 is invested at 8% per year simple interest. What is the amount after 3 years? (a) ₹3100 (b) ₹2700 (c) ₹600 (d) ₹3300
28. 28.The simple interest on ₹5000 for 5 years is ₹750. What is the rate per year? (a) 4% (b) 15% (c) 2% (d) 3%
29. 29.₹9000 is invested at 3% per year simple interest. What is the amount after 4 years? (a) ₹10350 (b) ₹1080 (c) ₹10080 (d) ₹9270
30. 30.₹5000 is invested at 4% per year simple interest. What is the amount after 2 years? (a) ₹5600 (b) ₹400 (c) ₹5400 (d) ₹5200
31. 31.The simple interest on ₹1000 for 4 years is ₹480. What is the rate per year? (a) 48% (b) 13% (c) 12% (d) 11%
32. 32.The simple interest on ₹3500 for 5 years is ₹1925. What is the rate per year? (a) 12% (b) 55% (c) 10% (d) 11%
33. 33.The simple interest on ₹8500 for 3 years is ₹765. What is the rate per year? (a) 3% (b) 9% (c) 4% (d) 2%
34. 34.What is the simple interest on ₹4500 at 3% per year for 3 years? (a) ₹405 (b) ₹540 (c) ₹4905 (d) ₹135
35. 35.₹1500 is invested at 5% per year simple interest. What is the amount after 5 years? (a) ₹1950 (b) ₹375 (c) ₹1875 (d) ₹1575
36. 36.What is the simple interest on ₹4500 at 8% per year for 4 years? (a) ₹360 (b) ₹5940 (c) ₹1800 (d) ₹1440
37. 37.The simple interest on ₹5500 for 2 years is ₹330. What is the rate per year? (a) 4% (b) 6% (c) 2% (d) 3%
38. 38.What is the simple interest on ₹2000 at 7% per year for 5 years? (a) ₹2700 (b) ₹140 (c) ₹700 (d) ₹840
39. 39.What is the simple interest on ₹6500 at 11% per year for 3 years? (a) ₹715 (b) ₹2145 (c) ₹8645 (d) ₹2860
40. 40.The simple interest on ₹2500 for 3 years is ₹825. What is the rate per year? (a) 11% (b) 12% (c) 10% (d) 33%

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