Simple Interest Worksheet for Maths Olympiad

Maths Olympiad topic 16: Simple interest · Set 285 · 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 ₹3000 for 3 years is ₹720. What is the rate per year? (a) 7% (b) 24% (c) 9% (d) 8%
2. 2.What is the simple interest on ₹1000 at 4% per year for 3 years? (a) ₹1120 (b) ₹40 (c) ₹160 (d) ₹120
3. 3.What is the simple interest on ₹3000 at 8% per year for 2 years? (a) ₹720 (b) ₹3480 (c) ₹240 (d) ₹480
4. 4.₹3000 is invested at 2% per year simple interest. What is the amount after 5 years? (a) ₹3300 (b) ₹300 (c) ₹3360 (d) ₹3060
5. 5.What is the simple interest on ₹9000 at 10% per year for 4 years? (a) ₹900 (b) ₹4500 (c) ₹12600 (d) ₹3600
6. 6.The simple interest on ₹1500 for 2 years is ₹90. What is the rate per year? (a) 4% (b) 6% (c) 2% (d) 3%
7. 7.₹2500 is invested at 6% per year simple interest. What is the amount after 2 years? (a) ₹300 (b) ₹2800 (c) ₹2950 (d) ₹2650
8. 8.₹1500 is invested at 8% per year simple interest. What is the amount after 4 years? (a) ₹1620 (b) ₹2100 (c) ₹1980 (d) ₹480
9. 9.₹8000 is invested at 11% per year simple interest. What is the amount after 5 years? (a) ₹13280 (b) ₹12400 (c) ₹8880 (d) ₹4400
10. 10.The simple interest on ₹2500 for 4 years is ₹300. What is the rate per year? (a) 3% (b) 12% (c) 4% (d) 2%
11. 11.In how many years will ₹1500 earn ₹330 simple interest at 11% per year? (a) 1 year (b) 4 years (c) 3 years (d) 2 years
12. 12.In how many years will ₹9500 earn ₹4275 simple interest at 9% per year? (a) 10 years (b) 4 years (c) 6 years (d) 5 years
13. 13.In how many years will ₹10000 earn ₹3000 simple interest at 10% per year? (a) 4 years (b) 6 years (c) 3 years (d) 2 years
14. 14.The simple interest on ₹2000 for 3 years is ₹480. What is the rate per year? (a) 24% (b) 8% (c) 7% (d) 9%
15. 15.What is the simple interest on ₹3000 at 9% per year for 2 years? (a) ₹3540 (b) ₹270 (c) ₹810 (d) ₹540
16. 16.The simple interest on ₹7000 for 5 years is ₹3150. What is the rate per year? (a) 8% (b) 45% (c) 9% (d) 10%
17. 17.₹9000 is invested at 2% per year simple interest. What is the amount after 2 years? (a) ₹9540 (b) ₹9180 (c) ₹360 (d) ₹9360
18. 18.₹7500 is invested at 4% per year simple interest. What is the amount after 4 years? (a) ₹9000 (b) ₹8700 (c) ₹7800 (d) ₹1200
19. 19.What is the simple interest on ₹5500 at 7% per year for 2 years? (a) ₹1155 (b) ₹385 (c) ₹770 (d) ₹6270
20. 20.What is the simple interest on ₹1000 at 10% per year for 2 years? (a) ₹300 (b) ₹1200 (c) ₹200 (d) ₹100
21. 21.The simple interest on ₹8500 for 2 years is ₹1700. What is the rate per year? (a) 11% (b) 20% (c) 9% (d) 10%
22. 22.What is the simple interest on ₹3500 at 4% per year for 5 years? (a) ₹840 (b) ₹4200 (c) ₹700 (d) ₹140
23. 23.What is the simple interest on ₹3500 at 8% per year for 2 years? (a) ₹560 (b) ₹280 (c) ₹840 (d) ₹4060
24. 24.The simple interest on ₹2500 for 2 years is ₹550. What is the rate per year? (a) 22% (b) 10% (c) 11% (d) 12%
25. 25.What is the simple interest on ₹1500 at 4% per year for 4 years? (a) ₹60 (b) ₹240 (c) ₹1740 (d) ₹300
26. 26.In how many years will ₹1000 earn ₹250 simple interest at 5% per year? (a) 5 years (b) 4 years (c) 10 years (d) 6 years
27. 27.The simple interest on ₹4000 for 2 years is ₹160. What is the rate per year? (a) 1% (b) 3% (c) 2% (d) 4%
28. 28.What is the simple interest on ₹9000 at 7% per year for 4 years? (a) ₹11520 (b) ₹2520 (c) ₹3150 (d) ₹630
29. 29.In how many years will ₹9000 earn ₹2160 simple interest at 12% per year? (a) 1 year (b) 4 years (c) 2 years (d) 3 years
30. 30.What is the simple interest on ₹1500 at 11% per year for 2 years? (a) ₹330 (b) ₹495 (c) ₹1830 (d) ₹165
31. 31.₹4000 is invested at 10% per year simple interest. What is the amount after 4 years? (a) ₹5600 (b) ₹4400 (c) ₹6000 (d) ₹1600
32. 32.In how many years will ₹5500 earn ₹2640 simple interest at 12% per year? (a) 4 years (b) 3 years (c) 8 years (d) 5 years
33. 33.₹9000 is invested at 8% per year simple interest. What is the amount after 4 years? (a) ₹9720 (b) ₹11880 (c) ₹2880 (d) ₹12600
34. 34.In how many years will ₹6000 earn ₹360 simple interest at 2% per year? (a) 2 years (b) 6 years (c) 3 years (d) 4 years
35. 35.What is the simple interest on ₹1000 at 8% per year for 2 years? (a) ₹80 (b) ₹240 (c) ₹1160 (d) ₹160
36. 36.In how many years will ₹9000 earn ₹5400 simple interest at 12% per year? (a) 10 years (b) 4 years (c) 5 years (d) 6 years
37. 37.In how many years will ₹3000 earn ₹1080 simple interest at 12% per year? (a) 4 years (b) 2 years (c) 6 years (d) 3 years
38. 38.What is the simple interest on ₹2500 at 2% per year for 2 years? (a) ₹150 (b) ₹50 (c) ₹2600 (d) ₹100
39. 39.The simple interest on ₹6000 for 4 years is ₹2160. What is the rate per year? (a) 36% (b) 9% (c) 8% (d) 10%
40. 40.What is the simple interest on ₹3500 at 2% per year for 3 years? (a) ₹3710 (b) ₹210 (c) ₹280 (d) ₹70

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