Simple Interest Worksheet for Maths Olympiad

Maths Olympiad topic 16: Simple interest · Set 45 · 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 ₹5500 at 10% per year for 4 years? (a) ₹2750 (b) ₹550 (c) ₹2200 (d) ₹7700
2. 2.What is the simple interest on ₹9000 at 3% per year for 3 years? (a) ₹270 (b) ₹810 (c) ₹1080 (d) ₹9810
3. 3.What is the simple interest on ₹7000 at 9% per year for 2 years? (a) ₹1260 (b) ₹1890 (c) ₹630 (d) ₹8260
4. 4.What is the simple interest on ₹4500 at 10% per year for 5 years? (a) ₹6750 (b) ₹2700 (c) ₹2250 (d) ₹450
5. 5.In how many years will ₹3000 earn ₹1200 simple interest at 8% per year? (a) 5 years (b) 6 years (c) 4 years (d) 10 years
6. 6.The simple interest on ₹5500 for 5 years is ₹3025. What is the rate per year? (a) 10% (b) 55% (c) 12% (d) 11%
7. 7.What is the simple interest on ₹5500 at 7% per year for 4 years? (a) ₹7040 (b) ₹1925 (c) ₹1540 (d) ₹385
8. 8.The simple interest on ₹3500 for 2 years is ₹770. What is the rate per year? (a) 22% (b) 10% (c) 12% (d) 11%
9. 9.The simple interest on ₹4500 for 4 years is ₹720. What is the rate per year? (a) 5% (b) 16% (c) 4% (d) 3%
10. 10.₹1000 is invested at 4% per year simple interest. What is the amount after 3 years? (a) ₹120 (b) ₹1160 (c) ₹1040 (d) ₹1120
11. 11.The simple interest on ₹9000 for 3 years is ₹540. What is the rate per year? (a) 1% (b) 3% (c) 2% (d) 6%
12. 12.What is the simple interest on ₹10000 at 8% per year for 4 years? (a) ₹4000 (b) ₹3200 (c) ₹800 (d) ₹13200
13. 13.What is the simple interest on ₹9000 at 7% per year for 3 years? (a) ₹10890 (b) ₹2520 (c) ₹630 (d) ₹1890
14. 14.₹3000 is invested at 11% per year simple interest. What is the amount after 2 years? (a) ₹3330 (b) ₹3660 (c) ₹660 (d) ₹3990
15. 15.The simple interest on ₹6000 for 3 years is ₹720. What is the rate per year? (a) 5% (b) 4% (c) 3% (d) 12%
16. 16.₹6500 is invested at 6% per year simple interest. What is the amount after 5 years? (a) ₹8450 (b) ₹6890 (c) ₹1950 (d) ₹8840
17. 17.In how many years will ₹2500 earn ₹500 simple interest at 4% per year? (a) 4 years (b) 10 years (c) 5 years (d) 6 years
18. 18.What is the simple interest on ₹3000 at 10% per year for 3 years? (a) ₹300 (b) ₹900 (c) ₹3900 (d) ₹1200
19. 19.In how many years will ₹2000 earn ₹400 simple interest at 4% per year? (a) 10 years (b) 6 years (c) 4 years (d) 5 years
20. 20.The simple interest on ₹9000 for 5 years is ₹3150. What is the rate per year? (a) 35% (b) 8% (c) 6% (d) 7%
21. 21.₹9500 is invested at 2% per year simple interest. What is the amount after 2 years? (a) ₹9690 (b) ₹10070 (c) ₹380 (d) ₹9880
22. 22.₹1500 is invested at 11% per year simple interest. What is the amount after 4 years? (a) ₹660 (b) ₹1665 (c) ₹2325 (d) ₹2160
23. 23.₹6500 is invested at 6% per year simple interest. What is the amount after 4 years? (a) ₹8450 (b) ₹6890 (c) ₹8060 (d) ₹1560
24. 24.₹7500 is invested at 6% per year simple interest. What is the amount after 3 years? (a) ₹1350 (b) ₹7950 (c) ₹9300 (d) ₹8850
25. 25.What is the simple interest on ₹9000 at 2% per year for 5 years? (a) ₹9900 (b) ₹900 (c) ₹180 (d) ₹1080
26. 26.₹1500 is invested at 2% per year simple interest. What is the amount after 4 years? (a) ₹1620 (b) ₹1530 (c) ₹120 (d) ₹1650
27. 27.₹10000 is invested at 9% per year simple interest. What is the amount after 2 years? (a) ₹10900 (b) ₹11800 (c) ₹12700 (d) ₹1800
28. 28.₹8500 is invested at 9% per year simple interest. What is the amount after 2 years? (a) ₹1530 (b) ₹10795 (c) ₹10030 (d) ₹9265
29. 29.What is the simple interest on ₹3000 at 8% per year for 5 years? (a) ₹1440 (b) ₹240 (c) ₹4200 (d) ₹1200
30. 30.What is the simple interest on ₹7500 at 4% per year for 2 years? (a) ₹8100 (b) ₹600 (c) ₹900 (d) ₹300
31. 31.₹5500 is invested at 11% per year simple interest. What is the amount after 2 years? (a) ₹6105 (b) ₹7315 (c) ₹1210 (d) ₹6710
32. 32.What is the simple interest on ₹2500 at 6% per year for 2 years? (a) ₹450 (b) ₹2800 (c) ₹300 (d) ₹150
33. 33.In how many years will ₹7000 earn ₹840 simple interest at 6% per year? (a) 1 year (b) 4 years (c) 2 years (d) 3 years
34. 34.The simple interest on ₹8000 for 2 years is ₹480. What is the rate per year? (a) 3% (b) 2% (c) 4% (d) 6%
35. 35.What is the simple interest on ₹4500 at 4% per year for 2 years? (a) ₹4860 (b) ₹180 (c) ₹540 (d) ₹360
36. 36.The simple interest on ₹9500 for 2 years is ₹380. What is the rate per year? (a) 4% (b) 1% (c) 3% (d) 2%
37. 37.₹8500 is invested at 5% per year simple interest. What is the amount after 5 years? (a) ₹8925 (b) ₹11050 (c) ₹2125 (d) ₹10625
38. 38.In how many years will ₹2000 earn ₹720 simple interest at 9% per year? (a) 3 years (b) 5 years (c) 4 years (d) 8 years
39. 39.₹4000 is invested at 4% per year simple interest. What is the amount after 4 years? (a) ₹640 (b) ₹4800 (c) ₹4160 (d) ₹4640
40. 40.The simple interest on ₹5000 for 4 years is ₹2200. What is the rate per year? (a) 12% (b) 44% (c) 11% (d) 10%

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