Simple Interest Worksheet for Maths Olympiad

Maths Olympiad topic 16: Simple interest · Set 260 · 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 ₹1500 for 2 years is ₹360. What is the rate per year? (a) 11% (b) 24% (c) 12% (d) 13%
2. 2.In how many years will ₹6000 earn ₹1200 simple interest at 10% per year? (a) 4 years (b) 3 years (c) 2 years (d) 1 year
3. 3.In how many years will ₹2500 earn ₹150 simple interest at 2% per year? (a) 4 years (b) 2 years (c) 3 years (d) 6 years
4. 4.₹1500 is invested at 7% per year simple interest. What is the amount after 5 years? (a) ₹2025 (b) ₹1605 (c) ₹2130 (d) ₹525
5. 5.In how many years will ₹9000 earn ₹5400 simple interest at 12% per year? (a) 10 years (b) 6 years (c) 4 years (d) 5 years
6. 6.₹1500 is invested at 12% per year simple interest. What is the amount after 5 years? (a) ₹900 (b) ₹2580 (c) ₹2400 (d) ₹1680
7. 7.₹6500 is invested at 11% per year simple interest. What is the amount after 2 years? (a) ₹1430 (b) ₹8645 (c) ₹7930 (d) ₹7215
8. 8.In how many years will ₹9000 earn ₹3600 simple interest at 8% per year? (a) 10 years (b) 6 years (c) 4 years (d) 5 years
9. 9.In how many years will ₹7000 earn ₹700 simple interest at 2% per year? (a) 6 years (b) 5 years (c) 10 years (d) 4 years
10. 10.The simple interest on ₹8000 for 3 years is ₹480. What is the rate per year? (a) 3% (b) 1% (c) 2% (d) 6%
11. 11.What is the simple interest on ₹3000 at 5% per year for 2 years? (a) ₹3300 (b) ₹300 (c) ₹450 (d) ₹150
12. 12.The simple interest on ₹5000 for 3 years is ₹1800. What is the rate per year? (a) 36% (b) 11% (c) 12% (d) 13%
13. 13.₹9500 is invested at 4% per year simple interest. What is the amount after 5 years? (a) ₹1900 (b) ₹9880 (c) ₹11400 (d) ₹11780
14. 14.The simple interest on ₹2500 for 2 years is ₹300. What is the rate per year? (a) 12% (b) 7% (c) 6% (d) 5%
15. 15.What is the simple interest on ₹7000 at 9% per year for 4 years? (a) ₹630 (b) ₹9520 (c) ₹2520 (d) ₹3150
16. 16.₹4500 is invested at 6% per year simple interest. What is the amount after 3 years? (a) ₹4770 (b) ₹810 (c) ₹5580 (d) ₹5310
17. 17.The simple interest on ₹3000 for 2 years is ₹600. What is the rate per year? (a) 10% (b) 20% (c) 9% (d) 11%
18. 18.What is the simple interest on ₹7500 at 2% per year for 4 years? (a) ₹600 (b) ₹750 (c) ₹8100 (d) ₹150
19. 19.In how many years will ₹8000 earn ₹1920 simple interest at 6% per year? (a) 5 years (b) 3 years (c) 8 years (d) 4 years
20. 20.In how many years will ₹9500 earn ₹1900 simple interest at 5% per year? (a) 5 years (b) 8 years (c) 4 years (d) 3 years
21. 21.What is the simple interest on ₹3000 at 4% per year for 4 years? (a) ₹480 (b) ₹600 (c) ₹3480 (d) ₹120
22. 22.What is the simple interest on ₹2500 at 10% per year for 4 years? (a) ₹1250 (b) ₹1000 (c) ₹3500 (d) ₹250
23. 23.In how many years will ₹2500 earn ₹900 simple interest at 9% per year? (a) 5 years (b) 4 years (c) 8 years (d) 3 years
24. 24.What is the simple interest on ₹1000 at 11% per year for 4 years? (a) ₹440 (b) ₹550 (c) ₹110 (d) ₹1440
25. 25.₹6000 is invested at 6% per year simple interest. What is the amount after 2 years? (a) ₹7080 (b) ₹6720 (c) ₹6360 (d) ₹720
26. 26.In how many years will ₹10000 earn ₹3000 simple interest at 10% per year? (a) 6 years (b) 3 years (c) 2 years (d) 4 years
27. 27.The simple interest on ₹3000 for 5 years is ₹900. What is the rate per year? (a) 6% (b) 5% (c) 7% (d) 30%
28. 28.What is the simple interest on ₹3000 at 2% per year for 5 years? (a) ₹300 (b) ₹360 (c) ₹60 (d) ₹3300
29. 29.What is the simple interest on ₹1500 at 2% per year for 2 years? (a) ₹1560 (b) ₹90 (c) ₹60 (d) ₹30
30. 30.₹10000 is invested at 3% per year simple interest. What is the amount after 4 years? (a) ₹1200 (b) ₹10300 (c) ₹11200 (d) ₹11500
31. 31.In how many years will ₹7000 earn ₹840 simple interest at 6% per year? (a) 4 years (b) 2 years (c) 1 year (d) 3 years
32. 32.In how many years will ₹10000 earn ₹2000 simple interest at 5% per year? (a) 5 years (b) 3 years (c) 8 years (d) 4 years
33. 33.₹7000 is invested at 10% per year simple interest. What is the amount after 2 years? (a) ₹7700 (b) ₹8400 (c) ₹9100 (d) ₹1400
34. 34.In how many years will ₹7500 earn ₹2400 simple interest at 8% per year? (a) 8 years (b) 5 years (c) 3 years (d) 4 years
35. 35.₹7500 is invested at 5% per year simple interest. What is the amount after 3 years? (a) ₹1125 (b) ₹7875 (c) ₹8625 (d) ₹9000
36. 36.In how many years will ₹8000 earn ₹480 simple interest at 3% per year? (a) 3 years (b) 4 years (c) 2 years (d) 1 year
37. 37.What is the simple interest on ₹5500 at 2% per year for 2 years? (a) ₹220 (b) ₹5720 (c) ₹330 (d) ₹110
38. 38.What is the simple interest on ₹2500 at 6% per year for 2 years? (a) ₹2800 (b) ₹300 (c) ₹450 (d) ₹150
39. 39.In how many years will ₹5000 earn ₹2000 simple interest at 10% per year? (a) 5 years (b) 8 years (c) 4 years (d) 3 years
40. 40.₹2000 is invested at 9% per year simple interest. What is the amount after 2 years? (a) ₹2360 (b) ₹360 (c) ₹2540 (d) ₹2180

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