Simple Interest Worksheet for Maths Olympiad

Maths Olympiad topic 16: Simple interest · Set 15 · 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.In how many years will ₹1500 earn ₹120 simple interest at 4% per year? (a) 1 year (b) 4 years (c) 2 years (d) 3 years
2. 2.What is the simple interest on ₹1000 at 8% per year for 5 years? (a) ₹80 (b) ₹480 (c) ₹1400 (d) ₹400
3. 3.₹8000 is invested at 4% per year simple interest. What is the amount after 5 years? (a) ₹8320 (b) ₹9920 (c) ₹1600 (d) ₹9600
4. 4.₹7500 is invested at 4% per year simple interest. What is the amount after 2 years? (a) ₹8400 (b) ₹7800 (c) ₹8100 (d) ₹600
5. 5.The simple interest on ₹5500 for 3 years is ₹660. What is the rate per year? (a) 3% (b) 5% (c) 4% (d) 12%
6. 6.What is the simple interest on ₹8500 at 6% per year for 3 years? (a) ₹510 (b) ₹10030 (c) ₹1530 (d) ₹2040
7. 7.₹5500 is invested at 3% per year simple interest. What is the amount after 5 years? (a) ₹6490 (b) ₹6325 (c) ₹5665 (d) ₹825
8. 8.What is the simple interest on ₹9500 at 12% per year for 2 years? (a) ₹11780 (b) ₹1140 (c) ₹3420 (d) ₹2280
9. 9.What is the simple interest on ₹5500 at 10% per year for 4 years? (a) ₹7700 (b) ₹550 (c) ₹2200 (d) ₹2750
10. 10.What is the simple interest on ₹8000 at 4% per year for 4 years? (a) ₹320 (b) ₹1280 (c) ₹9280 (d) ₹1600
11. 11.What is the simple interest on ₹2500 at 5% per year for 2 years? (a) ₹125 (b) ₹250 (c) ₹2750 (d) ₹375
12. 12.₹9500 is invested at 10% per year simple interest. What is the amount after 3 years? (a) ₹12350 (b) ₹10450 (c) ₹13300 (d) ₹2850
13. 13.₹8500 is invested at 7% per year simple interest. What is the amount after 5 years? (a) ₹9095 (b) ₹12070 (c) ₹2975 (d) ₹11475
14. 14.What is the simple interest on ₹9000 at 2% per year for 3 years? (a) ₹720 (b) ₹540 (c) ₹9540 (d) ₹180
15. 15.The simple interest on ₹2500 for 5 years is ₹250. What is the rate per year? (a) 1% (b) 10% (c) 3% (d) 2%
16. 16.In how many years will ₹6000 earn ₹2880 simple interest at 12% per year? (a) 5 years (b) 4 years (c) 8 years (d) 3 years
17. 17.₹10000 is invested at 4% per year simple interest. What is the amount after 2 years? (a) ₹800 (b) ₹11200 (c) ₹10400 (d) ₹10800
18. 18.₹3500 is invested at 3% per year simple interest. What is the amount after 2 years? (a) ₹210 (b) ₹3815 (c) ₹3605 (d) ₹3710
19. 19.The simple interest on ₹8500 for 4 years is ₹3060. What is the rate per year? (a) 10% (b) 36% (c) 8% (d) 9%
20. 20.What is the simple interest on ₹4000 at 2% per year for 2 years? (a) ₹160 (b) ₹4160 (c) ₹80 (d) ₹240
21. 21.What is the simple interest on ₹8000 at 4% per year for 5 years? (a) ₹9600 (b) ₹1600 (c) ₹1920 (d) ₹320
22. 22.₹6500 is invested at 8% per year simple interest. What is the amount after 3 years? (a) ₹1560 (b) ₹7020 (c) ₹8580 (d) ₹8060
23. 23.The simple interest on ₹1000 for 4 years is ₹280. What is the rate per year? (a) 7% (b) 8% (c) 6% (d) 28%
24. 24.The simple interest on ₹5500 for 5 years is ₹1100. What is the rate per year? (a) 3% (b) 5% (c) 4% (d) 20%
25. 25.In how many years will ₹7500 earn ₹4125 simple interest at 11% per year? (a) 4 years (b) 10 years (c) 5 years (d) 6 years
26. 26.₹8500 is invested at 4% per year simple interest. What is the amount after 5 years? (a) ₹10540 (b) ₹1700 (c) ₹8840 (d) ₹10200
27. 27.What is the simple interest on ₹9000 at 2% per year for 2 years? (a) ₹9360 (b) ₹180 (c) ₹540 (d) ₹360
28. 28.What is the simple interest on ₹7500 at 8% per year for 4 years? (a) ₹2400 (b) ₹9900 (c) ₹3000 (d) ₹600
29. 29.In how many years will ₹8000 earn ₹1760 simple interest at 11% per year? (a) 3 years (b) 4 years (c) 2 years (d) 1 year
30. 30.₹4500 is invested at 6% per year simple interest. What is the amount after 5 years? (a) ₹1350 (b) ₹6120 (c) ₹5850 (d) ₹4770
31. 31.In how many years will ₹2000 earn ₹900 simple interest at 9% per year? (a) 4 years (b) 10 years (c) 5 years (d) 6 years
32. 32.The simple interest on ₹8500 for 3 years is ₹1785. What is the rate per year? (a) 6% (b) 8% (c) 7% (d) 21%
33. 33.What is the simple interest on ₹3000 at 2% per year for 2 years? (a) ₹120 (b) ₹3120 (c) ₹180 (d) ₹60
34. 34.What is the simple interest on ₹7500 at 6% per year for 2 years? (a) ₹1350 (b) ₹900 (c) ₹450 (d) ₹8400
35. 35.What is the simple interest on ₹9000 at 11% per year for 3 years? (a) ₹2970 (b) ₹11970 (c) ₹990 (d) ₹3960
36. 36.What is the simple interest on ₹3500 at 4% per year for 2 years? (a) ₹140 (b) ₹420 (c) ₹280 (d) ₹3780
37. 37.In how many years will ₹1000 earn ₹550 simple interest at 11% per year? (a) 10 years (b) 6 years (c) 4 years (d) 5 years
38. 38.What is the simple interest on ₹6000 at 7% per year for 3 years? (a) ₹7260 (b) ₹420 (c) ₹1260 (d) ₹1680
39. 39.In how many years will ₹9500 earn ₹3800 simple interest at 8% per year? (a) 6 years (b) 10 years (c) 5 years (d) 4 years
40. 40.₹4000 is invested at 11% per year simple interest. What is the amount after 2 years? (a) ₹4440 (b) ₹5320 (c) ₹880 (d) ₹4880

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