Simple Interest Worksheet for Maths Olympiad

Maths Olympiad topic 16: Simple interest · Set 25 · 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.₹1000 is invested at 7% per year simple interest. What is the amount after 3 years? (a) ₹1280 (b) ₹1210 (c) ₹1070 (d) ₹210
2. 2.The simple interest on ₹3000 for 5 years is ₹450. What is the rate per year? (a) 2% (b) 4% (c) 3% (d) 15%
3. 3.In how many years will ₹6000 earn ₹360 simple interest at 3% per year? (a) 2 years (b) 3 years (c) 4 years (d) 1 year
4. 4.What is the simple interest on ₹4500 at 12% per year for 2 years? (a) ₹5580 (b) ₹1620 (c) ₹1080 (d) ₹540
5. 5.What is the simple interest on ₹10000 at 4% per year for 4 years? (a) ₹400 (b) ₹2000 (c) ₹1600 (d) ₹11600
6. 6.The simple interest on ₹5500 for 2 years is ₹220. What is the rate per year? (a) 2% (b) 1% (c) 4% (d) 3%
7. 7.What is the simple interest on ₹5000 at 12% per year for 3 years? (a) ₹1800 (b) ₹6800 (c) ₹600 (d) ₹2400
8. 8.The simple interest on ₹5000 for 2 years is ₹500. What is the rate per year? (a) 10% (b) 6% (c) 4% (d) 5%
9. 9.The simple interest on ₹9000 for 3 years is ₹810. What is the rate per year? (a) 2% (b) 4% (c) 9% (d) 3%
10. 10.What is the simple interest on ₹6500 at 11% per year for 2 years? (a) ₹1430 (b) ₹715 (c) ₹2145 (d) ₹7930
11. 11.₹9000 is invested at 5% per year simple interest. What is the amount after 4 years? (a) ₹1800 (b) ₹9450 (c) ₹11250 (d) ₹10800
12. 12.What is the simple interest on ₹1500 at 11% per year for 5 years? (a) ₹2325 (b) ₹165 (c) ₹990 (d) ₹825
13. 13.₹3500 is invested at 10% per year simple interest. What is the amount after 5 years? (a) ₹3850 (b) ₹1750 (c) ₹5600 (d) ₹5250
14. 14.What is the simple interest on ₹8500 at 2% per year for 2 years? (a) ₹170 (b) ₹510 (c) ₹340 (d) ₹8840
15. 15.What is the simple interest on ₹10000 at 8% per year for 2 years? (a) ₹800 (b) ₹2400 (c) ₹11600 (d) ₹1600
16. 16.₹2000 is invested at 10% per year simple interest. What is the amount after 3 years? (a) ₹2600 (b) ₹600 (c) ₹2800 (d) ₹2200
17. 17.The simple interest on ₹1500 for 2 years is ₹180. What is the rate per year? (a) 5% (b) 12% (c) 7% (d) 6%
18. 18.In how many years will ₹9500 earn ₹950 simple interest at 5% per year? (a) 1 year (b) 3 years (c) 4 years (d) 2 years
19. 19.₹6000 is invested at 10% per year simple interest. What is the amount after 2 years? (a) ₹7200 (b) ₹6600 (c) ₹1200 (d) ₹7800
20. 20.The simple interest on ₹3500 for 3 years is ₹1050. What is the rate per year? (a) 10% (b) 9% (c) 11% (d) 30%
21. 21.In how many years will ₹5500 earn ₹770 simple interest at 7% per year? (a) 1 year (b) 4 years (c) 3 years (d) 2 years
22. 22.The simple interest on ₹3500 for 4 years is ₹1540. What is the rate per year? (a) 12% (b) 10% (c) 11% (d) 44%
23. 23.What is the simple interest on ₹3000 at 3% per year for 4 years? (a) ₹3360 (b) ₹450 (c) ₹360 (d) ₹90
24. 24.The simple interest on ₹9000 for 3 years is ₹1890. What is the rate per year? (a) 7% (b) 6% (c) 21% (d) 8%
25. 25.₹4000 is invested at 5% per year simple interest. What is the amount after 2 years? (a) ₹400 (b) ₹4200 (c) ₹4400 (d) ₹4600
26. 26.What is the simple interest on ₹1500 at 11% per year for 4 years? (a) ₹825 (b) ₹660 (c) ₹165 (d) ₹2160
27. 27.The simple interest on ₹2000 for 2 years is ₹240. What is the rate per year? (a) 12% (b) 5% (c) 6% (d) 7%
28. 28.What is the simple interest on ₹8500 at 5% per year for 5 years? (a) ₹2550 (b) ₹10625 (c) ₹2125 (d) ₹425
29. 29.The simple interest on ₹4000 for 4 years is ₹640. What is the rate per year? (a) 16% (b) 3% (c) 5% (d) 4%
30. 30.What is the simple interest on ₹5500 at 5% per year for 3 years? (a) ₹275 (b) ₹1100 (c) ₹825 (d) ₹6325
31. 31.₹4500 is invested at 8% per year simple interest. What is the amount after 3 years? (a) ₹1080 (b) ₹4860 (c) ₹5940 (d) ₹5580
32. 32.What is the simple interest on ₹2000 at 5% per year for 4 years? (a) ₹100 (b) ₹400 (c) ₹500 (d) ₹2400
33. 33.What is the simple interest on ₹6500 at 4% per year for 5 years? (a) ₹1560 (b) ₹260 (c) ₹7800 (d) ₹1300
34. 34.In how many years will ₹9500 earn ₹3800 simple interest at 8% per year? (a) 10 years (b) 6 years (c) 4 years (d) 5 years
35. 35.The simple interest on ₹5500 for 3 years is ₹1155. What is the rate per year? (a) 6% (b) 21% (c) 7% (d) 8%
36. 36.₹2500 is invested at 12% per year simple interest. What is the amount after 3 years? (a) ₹900 (b) ₹2800 (c) ₹3700 (d) ₹3400
37. 37.What is the simple interest on ₹10000 at 3% per year for 3 years? (a) ₹10900 (b) ₹1200 (c) ₹300 (d) ₹900
38. 38.What is the simple interest on ₹1500 at 3% per year for 3 years? (a) ₹1635 (b) ₹180 (c) ₹45 (d) ₹135
39. 39.The simple interest on ₹1500 for 3 years is ₹360. What is the rate per year? (a) 9% (b) 7% (c) 24% (d) 8%
40. 40.In how many years will ₹6500 earn ₹1560 simple interest at 8% per year? (a) 2 years (b) 4 years (c) 6 years (d) 3 years

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