Simple Interest Worksheet for Maths Olympiad

Maths Olympiad topic 16: Simple interest · Set 521 · 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 ₹1000 at 7% per year for 4 years? (a) ₹70 (b) ₹1280 (c) ₹280 (d) ₹350
2. 2.The simple interest on ₹10000 for 2 years is ₹1000. What is the rate per year? (a) 10% (b) 6% (c) 5% (d) 4%
3. 3.In how many years will ₹6500 earn ₹1300 simple interest at 4% per year? (a) 4 years (b) 10 years (c) 5 years (d) 6 years
4. 4.The simple interest on ₹10000 for 3 years is ₹2700. What is the rate per year? (a) 8% (b) 10% (c) 27% (d) 9%
5. 5.The simple interest on ₹5500 for 4 years is ₹2420. What is the rate per year? (a) 12% (b) 44% (c) 11% (d) 10%
6. 6.The simple interest on ₹8500 for 2 years is ₹2040. What is the rate per year? (a) 12% (b) 11% (c) 13% (d) 24%
7. 7.In how many years will ₹4000 earn ₹640 simple interest at 8% per year? (a) 4 years (b) 2 years (c) 1 year (d) 3 years
8. 8.The simple interest on ₹4500 for 2 years is ₹1080. What is the rate per year? (a) 11% (b) 24% (c) 12% (d) 13%
9. 9.In how many years will ₹7500 earn ₹450 simple interest at 3% per year? (a) 3 years (b) 1 year (c) 4 years (d) 2 years
10. 10.₹5500 is invested at 12% per year simple interest. What is the amount after 2 years? (a) ₹1320 (b) ₹6820 (c) ₹6160 (d) ₹7480
11. 11.In how many years will ₹9500 earn ₹4275 simple interest at 9% per year? (a) 6 years (b) 10 years (c) 4 years (d) 5 years
12. 12.₹3500 is invested at 9% per year simple interest. What is the amount after 2 years? (a) ₹3815 (b) ₹4130 (c) ₹4445 (d) ₹630
13. 13.In how many years will ₹6500 earn ₹2340 simple interest at 9% per year? (a) 5 years (b) 3 years (c) 4 years (d) 8 years
14. 14.The simple interest on ₹4000 for 4 years is ₹1920. What is the rate per year? (a) 48% (b) 12% (c) 11% (d) 13%
15. 15.₹1500 is invested at 11% per year simple interest. What is the amount after 5 years? (a) ₹825 (b) ₹2490 (c) ₹1665 (d) ₹2325
16. 16.The simple interest on ₹9500 for 2 years is ₹1140. What is the rate per year? (a) 12% (b) 6% (c) 7% (d) 5%
17. 17.₹9000 is invested at 6% per year simple interest. What is the amount after 2 years? (a) ₹9540 (b) ₹1080 (c) ₹10620 (d) ₹10080
18. 18.₹9500 is invested at 8% per year simple interest. What is the amount after 4 years? (a) ₹10260 (b) ₹13300 (c) ₹12540 (d) ₹3040
19. 19.The simple interest on ₹1000 for 2 years is ₹140. What is the rate per year? (a) 7% (b) 6% (c) 8% (d) 14%
20. 20.What is the simple interest on ₹8500 at 12% per year for 4 years? (a) ₹12580 (b) ₹1020 (c) ₹4080 (d) ₹5100
21. 21.The simple interest on ₹8000 for 2 years is ₹1600. What is the rate per year? (a) 20% (b) 11% (c) 9% (d) 10%
22. 22.In how many years will ₹2500 earn ₹100 simple interest at 2% per year? (a) 1 year (b) 2 years (c) 3 years (d) 4 years
23. 23.What is the simple interest on ₹5000 at 8% per year for 4 years? (a) ₹6600 (b) ₹1600 (c) ₹2000 (d) ₹400
24. 24.The simple interest on ₹5500 for 2 years is ₹1100. What is the rate per year? (a) 11% (b) 9% (c) 20% (d) 10%
25. 25.₹4500 is invested at 7% per year simple interest. What is the amount after 2 years? (a) ₹5130 (b) ₹630 (c) ₹5445 (d) ₹4815
26. 26.In how many years will ₹3500 earn ₹1260 simple interest at 9% per year? (a) 3 years (b) 5 years (c) 8 years (d) 4 years
27. 27.The simple interest on ₹7000 for 4 years is ₹1120. What is the rate per year? (a) 3% (b) 4% (c) 16% (d) 5%
28. 28.What is the simple interest on ₹5000 at 3% per year for 5 years? (a) ₹750 (b) ₹150 (c) ₹5750 (d) ₹900
29. 29.The simple interest on ₹5500 for 5 years is ₹3025. What is the rate per year? (a) 55% (b) 12% (c) 11% (d) 10%
30. 30.The simple interest on ₹3000 for 5 years is ₹1800. What is the rate per year? (a) 12% (b) 60% (c) 13% (d) 11%
31. 31.What is the simple interest on ₹2500 at 2% per year for 5 years? (a) ₹50 (b) ₹250 (c) ₹2750 (d) ₹300
32. 32.What is the simple interest on ₹3500 at 2% per year for 4 years? (a) ₹70 (b) ₹350 (c) ₹3780 (d) ₹280
33. 33.₹4500 is invested at 5% per year simple interest. What is the amount after 2 years? (a) ₹450 (b) ₹4950 (c) ₹4725 (d) ₹5175
34. 34.The simple interest on ₹9500 for 3 years is ₹2565. What is the rate per year? (a) 8% (b) 27% (c) 10% (d) 9%
35. 35.The simple interest on ₹6000 for 2 years is ₹960. What is the rate per year? (a) 8% (b) 7% (c) 16% (d) 9%
36. 36.What is the simple interest on ₹5000 at 3% per year for 2 years? (a) ₹5300 (b) ₹450 (c) ₹300 (d) ₹150
37. 37.What is the simple interest on ₹4500 at 3% per year for 4 years? (a) ₹675 (b) ₹540 (c) ₹5040 (d) ₹135
38. 38.₹5500 is invested at 2% per year simple interest. What is the amount after 2 years? (a) ₹5720 (b) ₹5610 (c) ₹220 (d) ₹5830
39. 39.In how many years will ₹8000 earn ₹3520 simple interest at 11% per year? (a) 4 years (b) 3 years (c) 8 years (d) 5 years
40. 40.In how many years will ₹6500 earn ₹1365 simple interest at 7% per year? (a) 6 years (b) 3 years (c) 2 years (d) 4 years

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