Simple Interest Worksheet for Maths Olympiad

Maths Olympiad topic 16: Simple interest · Set 951 · 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 ₹7500 earn ₹3000 simple interest at 8% per year? (a) 6 years (b) 10 years (c) 5 years (d) 4 years
2. 2.In how many years will ₹8500 earn ₹1275 simple interest at 5% per year? (a) 3 years (b) 4 years (c) 6 years (d) 2 years
3. 3.The simple interest on ₹9000 for 5 years is ₹900. What is the rate per year? (a) 1% (b) 10% (c) 2% (d) 3%
4. 4.₹2500 is invested at 8% per year simple interest. What is the amount after 4 years? (a) ₹2700 (b) ₹3300 (c) ₹3500 (d) ₹800
5. 5.What is the simple interest on ₹8500 at 5% per year for 4 years? (a) ₹10200 (b) ₹1700 (c) ₹425 (d) ₹2125
6. 6.In how many years will ₹7000 earn ₹2800 simple interest at 8% per year? (a) 5 years (b) 10 years (c) 6 years (d) 4 years
7. 7.What is the simple interest on ₹2000 at 8% per year for 4 years? (a) ₹800 (b) ₹640 (c) ₹160 (d) ₹2640
8. 8.₹2000 is invested at 7% per year simple interest. What is the amount after 2 years? (a) ₹2140 (b) ₹2420 (c) ₹2280 (d) ₹280
9. 9.₹5500 is invested at 8% per year simple interest. What is the amount after 5 years? (a) ₹2200 (b) ₹7700 (c) ₹8140 (d) ₹5940
10. 10.In how many years will ₹10000 earn ₹1400 simple interest at 7% per year? (a) 1 year (b) 3 years (c) 4 years (d) 2 years
11. 11.In how many years will ₹7500 earn ₹4125 simple interest at 11% per year? (a) 10 years (b) 4 years (c) 6 years (d) 5 years
12. 12.The simple interest on ₹2000 for 2 years is ₹280. What is the rate per year? (a) 7% (b) 8% (c) 14% (d) 6%
13. 13.The simple interest on ₹5000 for 2 years is ₹800. What is the rate per year? (a) 9% (b) 8% (c) 7% (d) 16%
14. 14.In how many years will ₹2500 earn ₹500 simple interest at 4% per year? (a) 6 years (b) 10 years (c) 4 years (d) 5 years
15. 15.₹9500 is invested at 7% per year simple interest. What is the amount after 5 years? (a) ₹10165 (b) ₹13490 (c) ₹12825 (d) ₹3325
16. 16.The simple interest on ₹8000 for 3 years is ₹2640. What is the rate per year? (a) 10% (b) 12% (c) 33% (d) 11%
17. 17.What is the simple interest on ₹9000 at 5% per year for 3 years? (a) ₹450 (b) ₹1800 (c) ₹1350 (d) ₹10350
18. 18.What is the simple interest on ₹3000 at 12% per year for 4 years? (a) ₹1800 (b) ₹4440 (c) ₹1440 (d) ₹360
19. 19.₹6000 is invested at 11% per year simple interest. What is the amount after 4 years? (a) ₹9300 (b) ₹6660 (c) ₹8640 (d) ₹2640
20. 20.₹2000 is invested at 2% per year simple interest. What is the amount after 2 years? (a) ₹2080 (b) ₹2040 (c) ₹2120 (d) ₹80
21. 21.What is the simple interest on ₹10000 at 9% per year for 2 years? (a) ₹11800 (b) ₹2700 (c) ₹1800 (d) ₹900
22. 22.The simple interest on ₹7500 for 4 years is ₹1200. What is the rate per year? (a) 16% (b) 3% (c) 4% (d) 5%
23. 23.₹2000 is invested at 11% per year simple interest. What is the amount after 5 years? (a) ₹3320 (b) ₹2220 (c) ₹1100 (d) ₹3100
24. 24.The simple interest on ₹9000 for 5 years is ₹1350. What is the rate per year? (a) 3% (b) 2% (c) 4% (d) 15%
25. 25.In how many years will ₹7000 earn ₹1470 simple interest at 7% per year? (a) 4 years (b) 2 years (c) 6 years (d) 3 years
26. 26.₹7500 is invested at 12% per year simple interest. What is the amount after 4 years? (a) ₹11100 (b) ₹8400 (c) ₹12000 (d) ₹3600
27. 27.In how many years will ₹3500 earn ₹2100 simple interest at 12% per year? (a) 6 years (b) 4 years (c) 5 years (d) 10 years
28. 28.What is the simple interest on ₹9000 at 4% per year for 3 years? (a) ₹10080 (b) ₹1440 (c) ₹1080 (d) ₹360
29. 29.In how many years will ₹8000 earn ₹1440 simple interest at 9% per year? (a) 4 years (b) 2 years (c) 1 year (d) 3 years
30. 30.What is the simple interest on ₹3000 at 2% per year for 3 years? (a) ₹3180 (b) ₹240 (c) ₹60 (d) ₹180
31. 31.What is the simple interest on ₹1000 at 3% per year for 2 years? (a) ₹30 (b) ₹60 (c) ₹90 (d) ₹1060
32. 32.What is the simple interest on ₹3000 at 6% per year for 3 years? (a) ₹720 (b) ₹180 (c) ₹3540 (d) ₹540
33. 33.₹7000 is invested at 4% per year simple interest. What is the amount after 4 years? (a) ₹8400 (b) ₹8120 (c) ₹1120 (d) ₹7280
34. 34.₹5000 is invested at 12% per year simple interest. What is the amount after 3 years? (a) ₹7400 (b) ₹1800 (c) ₹6800 (d) ₹5600
35. 35.The simple interest on ₹7500 for 2 years is ₹1800. What is the rate per year? (a) 24% (b) 12% (c) 13% (d) 11%
36. 36.₹1500 is invested at 7% per year simple interest. What is the amount after 2 years? (a) ₹1605 (b) ₹210 (c) ₹1815 (d) ₹1710
37. 37.What is the simple interest on ₹4000 at 9% per year for 5 years? (a) ₹5800 (b) ₹2160 (c) ₹1800 (d) ₹360
38. 38.What is the simple interest on ₹9500 at 3% per year for 3 years? (a) ₹10355 (b) ₹855 (c) ₹285 (d) ₹1140
39. 39.₹2500 is invested at 11% per year simple interest. What is the amount after 4 years? (a) ₹3600 (b) ₹2775 (c) ₹1100 (d) ₹3875
40. 40.The simple interest on ₹7500 for 5 years is ₹1875. What is the rate per year? (a) 25% (b) 4% (c) 6% (d) 5%

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