Simple Interest Worksheet for Maths Olympiad

Maths Olympiad topic 16: Simple interest · Set 622 · 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.₹7500 is invested at 6% per year simple interest. What is the amount after 3 years? (a) ₹1350 (b) ₹9300 (c) ₹7950 (d) ₹8850
2. 2.₹8000 is invested at 9% per year simple interest. What is the amount after 3 years? (a) ₹10160 (b) ₹2160 (c) ₹10880 (d) ₹8720
3. 3.The simple interest on ₹9000 for 3 years is ₹2430. What is the rate per year? (a) 9% (b) 8% (c) 10% (d) 27%
4. 4.The simple interest on ₹1500 for 2 years is ₹300. What is the rate per year? (a) 9% (b) 20% (c) 11% (d) 10%
5. 5.What is the simple interest on ₹8000 at 3% per year for 5 years? (a) ₹9200 (b) ₹240 (c) ₹1440 (d) ₹1200
6. 6.What is the simple interest on ₹7500 at 9% per year for 4 years? (a) ₹2700 (b) ₹675 (c) ₹10200 (d) ₹3375
7. 7.The simple interest on ₹9500 for 5 years is ₹1425. What is the rate per year? (a) 2% (b) 4% (c) 3% (d) 15%
8. 8.The simple interest on ₹4000 for 4 years is ₹800. What is the rate per year? (a) 20% (b) 6% (c) 5% (d) 4%
9. 9.The simple interest on ₹9000 for 3 years is ₹1080. What is the rate per year? (a) 5% (b) 12% (c) 3% (d) 4%
10. 10.The simple interest on ₹9000 for 2 years is ₹1800. What is the rate per year? (a) 11% (b) 20% (c) 9% (d) 10%
11. 11.What is the simple interest on ₹9000 at 9% per year for 5 years? (a) ₹4860 (b) ₹13050 (c) ₹4050 (d) ₹810
12. 12.The simple interest on ₹7500 for 4 years is ₹2400. What is the rate per year? (a) 8% (b) 7% (c) 9% (d) 32%
13. 13.The simple interest on ₹7500 for 3 years is ₹675. What is the rate per year? (a) 9% (b) 4% (c) 2% (d) 3%
14. 14.What is the simple interest on ₹9000 at 7% per year for 3 years? (a) ₹1890 (b) ₹10890 (c) ₹2520 (d) ₹630
15. 15.The simple interest on ₹1500 for 5 years is ₹600. What is the rate per year? (a) 9% (b) 8% (c) 40% (d) 7%
16. 16.₹10000 is invested at 2% per year simple interest. What is the amount after 4 years? (a) ₹11000 (b) ₹10200 (c) ₹10800 (d) ₹800
17. 17.In how many years will ₹2000 earn ₹640 simple interest at 8% per year? (a) 3 years (b) 4 years (c) 8 years (d) 5 years
18. 18.₹9500 is invested at 6% per year simple interest. What is the amount after 4 years? (a) ₹10070 (b) ₹12350 (c) ₹11780 (d) ₹2280
19. 19.What is the simple interest on ₹2500 at 9% per year for 5 years? (a) ₹1125 (b) ₹225 (c) ₹1350 (d) ₹3625
20. 20.₹2000 is invested at 5% per year simple interest. What is the amount after 4 years? (a) ₹2400 (b) ₹2100 (c) ₹400 (d) ₹2500
21. 21.What is the simple interest on ₹1000 at 2% per year for 3 years? (a) ₹20 (b) ₹60 (c) ₹80 (d) ₹1060
22. 22.What is the simple interest on ₹2500 at 9% per year for 4 years? (a) ₹3400 (b) ₹1125 (c) ₹900 (d) ₹225
23. 23.In how many years will ₹9500 earn ₹2375 simple interest at 5% per year? (a) 6 years (b) 4 years (c) 10 years (d) 5 years
24. 24.What is the simple interest on ₹2000 at 9% per year for 4 years? (a) ₹900 (b) ₹2720 (c) ₹720 (d) ₹180
25. 25.In how many years will ₹3000 earn ₹360 simple interest at 4% per year? (a) 2 years (b) 6 years (c) 3 years (d) 4 years
26. 26.₹2500 is invested at 12% per year simple interest. What is the amount after 5 years? (a) ₹1500 (b) ₹4000 (c) ₹2800 (d) ₹4300
27. 27.In how many years will ₹10000 earn ₹900 simple interest at 3% per year? (a) 6 years (b) 2 years (c) 3 years (d) 4 years
28. 28.The simple interest on ₹2500 for 2 years is ₹450. What is the rate per year? (a) 18% (b) 10% (c) 9% (d) 8%
29. 29.What is the simple interest on ₹10000 at 11% per year for 4 years? (a) ₹14400 (b) ₹4400 (c) ₹1100 (d) ₹5500
30. 30.The simple interest on ₹3500 for 2 years is ₹630. What is the rate per year? (a) 10% (b) 18% (c) 9% (d) 8%
31. 31.₹8500 is invested at 10% per year simple interest. What is the amount after 2 years? (a) ₹9350 (b) ₹1700 (c) ₹11050 (d) ₹10200
32. 32.₹1500 is invested at 4% per year simple interest. What is the amount after 2 years? (a) ₹120 (b) ₹1560 (c) ₹1620 (d) ₹1680
33. 33.What is the simple interest on ₹9000 at 4% per year for 4 years? (a) ₹10440 (b) ₹360 (c) ₹1440 (d) ₹1800
34. 34.What is the simple interest on ₹5500 at 8% per year for 4 years? (a) ₹1760 (b) ₹440 (c) ₹2200 (d) ₹7260
35. 35.What is the simple interest on ₹5000 at 3% per year for 5 years? (a) ₹150 (b) ₹5750 (c) ₹900 (d) ₹750
36. 36.In how many years will ₹7500 earn ₹1800 simple interest at 6% per year? (a) 5 years (b) 3 years (c) 8 years (d) 4 years
37. 37.The simple interest on ₹2500 for 5 years is ₹500. What is the rate per year? (a) 3% (b) 5% (c) 20% (d) 4%
38. 38.In how many years will ₹9000 earn ₹1350 simple interest at 5% per year? (a) 6 years (b) 4 years (c) 3 years (d) 2 years
39. 39.₹1000 is invested at 7% per year simple interest. What is the amount after 4 years? (a) ₹1280 (b) ₹280 (c) ₹1350 (d) ₹1070
40. 40.₹2000 is invested at 9% per year simple interest. What is the amount after 2 years? (a) ₹360 (b) ₹2360 (c) ₹2540 (d) ₹2180

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