Simple Interest Worksheet for Maths Olympiad

Maths Olympiad topic 16: Simple interest · Set 426 · 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.₹6500 is invested at 7% per year simple interest. What is the amount after 3 years? (a) ₹8320 (b) ₹1365 (c) ₹6955 (d) ₹7865
2. 2.The simple interest on ₹5500 for 2 years is ₹660. What is the rate per year? (a) 7% (b) 5% (c) 6% (d) 12%
3. 3.₹5500 is invested at 12% per year simple interest. What is the amount after 4 years? (a) ₹2640 (b) ₹6160 (c) ₹8800 (d) ₹8140
4. 4.₹8000 is invested at 10% per year simple interest. What is the amount after 3 years? (a) ₹8800 (b) ₹2400 (c) ₹10400 (d) ₹11200
5. 5.What is the simple interest on ₹1500 at 11% per year for 5 years? (a) ₹990 (b) ₹2325 (c) ₹825 (d) ₹165
6. 6.The simple interest on ₹8000 for 4 years is ₹1280. What is the rate per year? (a) 16% (b) 4% (c) 5% (d) 3%
7. 7.What is the simple interest on ₹1500 at 8% per year for 3 years? (a) ₹120 (b) ₹360 (c) ₹480 (d) ₹1860
8. 8.In how many years will ₹9500 earn ₹1995 simple interest at 7% per year? (a) 4 years (b) 6 years (c) 2 years (d) 3 years
9. 9.In how many years will ₹2000 earn ₹600 simple interest at 10% per year? (a) 2 years (b) 3 years (c) 6 years (d) 4 years
10. 10.The simple interest on ₹9000 for 5 years is ₹1350. What is the rate per year? (a) 2% (b) 4% (c) 15% (d) 3%
11. 11.The simple interest on ₹3000 for 3 years is ₹180. What is the rate per year? (a) 1% (b) 6% (c) 2% (d) 3%
12. 12.In how many years will ₹1500 earn ₹495 simple interest at 11% per year? (a) 3 years (b) 6 years (c) 2 years (d) 4 years
13. 13.The simple interest on ₹6000 for 5 years is ₹2100. What is the rate per year? (a) 35% (b) 8% (c) 7% (d) 6%
14. 14.In how many years will ₹7000 earn ₹3360 simple interest at 12% per year? (a) 3 years (b) 8 years (c) 4 years (d) 5 years
15. 15.The simple interest on ₹3500 for 2 years is ₹630. What is the rate per year? (a) 18% (b) 10% (c) 8% (d) 9%
16. 16.In how many years will ₹7500 earn ₹3750 simple interest at 10% per year? (a) 5 years (b) 10 years (c) 4 years (d) 6 years
17. 17.₹2000 is invested at 4% per year simple interest. What is the amount after 3 years? (a) ₹240 (b) ₹2240 (c) ₹2080 (d) ₹2320
18. 18.In how many years will ₹5500 earn ₹1100 simple interest at 5% per year? (a) 5 years (b) 4 years (c) 3 years (d) 8 years
19. 19.What is the simple interest on ₹5500 at 5% per year for 4 years? (a) ₹6600 (b) ₹275 (c) ₹1100 (d) ₹1375
20. 20.The simple interest on ₹5000 for 5 years is ₹2000. What is the rate per year? (a) 7% (b) 9% (c) 8% (d) 40%
21. 21.What is the simple interest on ₹6000 at 11% per year for 5 years? (a) ₹660 (b) ₹3960 (c) ₹3300 (d) ₹9300
22. 22.In how many years will ₹4500 earn ₹405 simple interest at 3% per year? (a) 2 years (b) 3 years (c) 6 years (d) 4 years
23. 23.₹6500 is invested at 12% per year simple interest. What is the amount after 4 years? (a) ₹10400 (b) ₹9620 (c) ₹7280 (d) ₹3120
24. 24.What is the simple interest on ₹10000 at 10% per year for 5 years? (a) ₹5000 (b) ₹1000 (c) ₹15000 (d) ₹6000
25. 25.₹2500 is invested at 2% per year simple interest. What is the amount after 3 years? (a) ₹2700 (b) ₹150 (c) ₹2550 (d) ₹2650
26. 26.₹1000 is invested at 9% per year simple interest. What is the amount after 5 years? (a) ₹1450 (b) ₹1090 (c) ₹450 (d) ₹1540
27. 27.The simple interest on ₹9000 for 4 years is ₹1800. What is the rate per year? (a) 6% (b) 4% (c) 5% (d) 20%
28. 28.The simple interest on ₹6000 for 2 years is ₹720. What is the rate per year? (a) 5% (b) 6% (c) 12% (d) 7%
29. 29.The simple interest on ₹7000 for 5 years is ₹1750. What is the rate per year? (a) 4% (b) 25% (c) 6% (d) 5%
30. 30.The simple interest on ₹4000 for 4 years is ₹800. What is the rate per year? (a) 6% (b) 20% (c) 4% (d) 5%
31. 31.What is the simple interest on ₹4500 at 2% per year for 2 years? (a) ₹4680 (b) ₹90 (c) ₹180 (d) ₹270
32. 32.₹7500 is invested at 4% per year simple interest. What is the amount after 4 years? (a) ₹9000 (b) ₹7800 (c) ₹8700 (d) ₹1200
33. 33.₹10000 is invested at 12% per year simple interest. What is the amount after 3 years? (a) ₹14800 (b) ₹13600 (c) ₹11200 (d) ₹3600
34. 34.What is the simple interest on ₹2000 at 3% per year for 3 years? (a) ₹2180 (b) ₹180 (c) ₹240 (d) ₹60
35. 35.The simple interest on ₹2000 for 5 years is ₹300. What is the rate per year? (a) 4% (b) 15% (c) 2% (d) 3%
36. 36.In how many years will ₹2000 earn ₹800 simple interest at 10% per year? (a) 8 years (b) 5 years (c) 4 years (d) 3 years
37. 37.What is the simple interest on ₹3500 at 8% per year for 5 years? (a) ₹280 (b) ₹1400 (c) ₹1680 (d) ₹4900
38. 38.In how many years will ₹9500 earn ₹380 simple interest at 2% per year? (a) 3 years (b) 4 years (c) 1 year (d) 2 years
39. 39.₹5500 is invested at 5% per year simple interest. What is the amount after 3 years? (a) ₹5775 (b) ₹825 (c) ₹6600 (d) ₹6325
40. 40.The simple interest on ₹5500 for 5 years is ₹3025. What is the rate per year? (a) 11% (b) 10% (c) 12% (d) 55%

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