Simple Interest Worksheet for Maths Olympiad

Maths Olympiad topic 16: Simple interest · Set 198 · 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 ₹8000 at 8% per year for 2 years? (a) ₹1280 (b) ₹9280 (c) ₹1920 (d) ₹640
2. 2.The simple interest on ₹10000 for 2 years is ₹2200. What is the rate per year? (a) 22% (b) 11% (c) 10% (d) 12%
3. 3.The simple interest on ₹7500 for 5 years is ₹1125. What is the rate per year? (a) 15% (b) 4% (c) 2% (d) 3%
4. 4.The simple interest on ₹6000 for 5 years is ₹3000. What is the rate per year? (a) 50% (b) 9% (c) 10% (d) 11%
5. 5.What is the simple interest on ₹9000 at 7% per year for 3 years? (a) ₹2520 (b) ₹10890 (c) ₹630 (d) ₹1890
6. 6.The simple interest on ₹1000 for 4 years is ₹360. What is the rate per year? (a) 10% (b) 36% (c) 8% (d) 9%
7. 7.The simple interest on ₹1000 for 3 years is ₹180. What is the rate per year? (a) 18% (b) 7% (c) 6% (d) 5%
8. 8.What is the simple interest on ₹5000 at 2% per year for 2 years? (a) ₹200 (b) ₹300 (c) ₹100 (d) ₹5200
9. 9.In how many years will ₹2500 earn ₹600 simple interest at 8% per year? (a) 4 years (b) 3 years (c) 6 years (d) 2 years
10. 10.₹4500 is invested at 9% per year simple interest. What is the amount after 2 years? (a) ₹5715 (b) ₹810 (c) ₹4905 (d) ₹5310
11. 11.The simple interest on ₹2000 for 2 years is ₹280. What is the rate per year? (a) 14% (b) 7% (c) 8% (d) 6%
12. 12.The simple interest on ₹2500 for 4 years is ₹400. What is the rate per year? (a) 3% (b) 4% (c) 5% (d) 16%
13. 13.The simple interest on ₹1500 for 4 years is ₹300. What is the rate per year? (a) 5% (b) 6% (c) 4% (d) 20%
14. 14.₹4500 is invested at 6% per year simple interest. What is the amount after 2 years? (a) ₹5310 (b) ₹5040 (c) ₹4770 (d) ₹540
15. 15.In how many years will ₹4000 earn ₹1440 simple interest at 9% per year? (a) 8 years (b) 5 years (c) 3 years (d) 4 years
16. 16.The simple interest on ₹9500 for 2 years is ₹1900. What is the rate per year? (a) 11% (b) 10% (c) 9% (d) 20%
17. 17.The simple interest on ₹2000 for 5 years is ₹500. What is the rate per year? (a) 6% (b) 5% (c) 4% (d) 25%
18. 18.What is the simple interest on ₹3000 at 8% per year for 3 years? (a) ₹3720 (b) ₹960 (c) ₹720 (d) ₹240
19. 19.₹7500 is invested at 2% per year simple interest. What is the amount after 3 years? (a) ₹8100 (b) ₹7950 (c) ₹7650 (d) ₹450
20. 20.₹7000 is invested at 4% per year simple interest. What is the amount after 5 years? (a) ₹8680 (b) ₹8400 (c) ₹7280 (d) ₹1400
21. 21.What is the simple interest on ₹9000 at 12% per year for 4 years? (a) ₹1080 (b) ₹4320 (c) ₹13320 (d) ₹5400
22. 22.What is the simple interest on ₹2000 at 2% per year for 4 years? (a) ₹2160 (b) ₹160 (c) ₹40 (d) ₹200
23. 23.The simple interest on ₹3000 for 4 years is ₹1080. What is the rate per year? (a) 10% (b) 36% (c) 8% (d) 9%
24. 24.What is the simple interest on ₹6500 at 4% per year for 5 years? (a) ₹7800 (b) ₹260 (c) ₹1300 (d) ₹1560
25. 25.What is the simple interest on ₹10000 at 8% per year for 4 years? (a) ₹3200 (b) ₹800 (c) ₹13200 (d) ₹4000
26. 26.₹9000 is invested at 6% per year simple interest. What is the amount after 2 years? (a) ₹1080 (b) ₹9540 (c) ₹10080 (d) ₹10620
27. 27.The simple interest on ₹3500 for 2 years is ₹770. What is the rate per year? (a) 22% (b) 10% (c) 11% (d) 12%
28. 28.The simple interest on ₹7000 for 4 years is ₹2800. What is the rate per year? (a) 9% (b) 11% (c) 40% (d) 10%
29. 29.In how many years will ₹6500 earn ₹1300 simple interest at 10% per year? (a) 1 year (b) 4 years (c) 3 years (d) 2 years
30. 30.What is the simple interest on ₹9000 at 2% per year for 2 years? (a) ₹540 (b) ₹360 (c) ₹180 (d) ₹9360
31. 31.In how many years will ₹4500 earn ₹540 simple interest at 4% per year? (a) 2 years (b) 4 years (c) 3 years (d) 6 years
32. 32.What is the simple interest on ₹8000 at 11% per year for 4 years? (a) ₹4400 (b) ₹880 (c) ₹3520 (d) ₹11520
33. 33.₹7000 is invested at 2% per year simple interest. What is the amount after 4 years? (a) ₹560 (b) ₹7140 (c) ₹7560 (d) ₹7700
34. 34.₹1500 is invested at 8% per year simple interest. What is the amount after 2 years? (a) ₹1860 (b) ₹1620 (c) ₹240 (d) ₹1740
35. 35.The simple interest on ₹3000 for 3 years is ₹450. What is the rate per year? (a) 15% (b) 6% (c) 4% (d) 5%
36. 36.₹4500 is invested at 2% per year simple interest. What is the amount after 2 years? (a) ₹180 (b) ₹4590 (c) ₹4770 (d) ₹4680
37. 37.What is the simple interest on ₹5500 at 3% per year for 4 years? (a) ₹6160 (b) ₹165 (c) ₹825 (d) ₹660
38. 38.₹10000 is invested at 12% per year simple interest. What is the amount after 4 years? (a) ₹4800 (b) ₹11200 (c) ₹14800 (d) ₹16000
39. 39.In how many years will ₹5000 earn ₹1000 simple interest at 5% per year? (a) 8 years (b) 5 years (c) 3 years (d) 4 years
40. 40.₹10000 is invested at 11% per year simple interest. What is the amount after 2 years? (a) ₹2200 (b) ₹11100 (c) ₹13300 (d) ₹12200

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