Simple Interest Worksheet for Maths Olympiad

Maths Olympiad topic 16: Simple interest · Set 494 · 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.The simple interest on ₹10000 for 3 years is ₹900. What is the rate per year? (a) 2% (b) 9% (c) 4% (d) 3%
2. 2.The simple interest on ₹10000 for 3 years is ₹2400. What is the rate per year? (a) 9% (b) 24% (c) 8% (d) 7%
3. 3.The simple interest on ₹7500 for 3 years is ₹675. What is the rate per year? (a) 4% (b) 9% (c) 2% (d) 3%
4. 4.The simple interest on ₹6500 for 5 years is ₹2925. What is the rate per year? (a) 8% (b) 45% (c) 9% (d) 10%
5. 5.In how many years will ₹7000 earn ₹3360 simple interest at 12% per year? (a) 3 years (b) 8 years (c) 5 years (d) 4 years
6. 6.What is the simple interest on ₹5500 at 6% per year for 3 years? (a) ₹1320 (b) ₹330 (c) ₹6490 (d) ₹990
7. 7.What is the simple interest on ₹7000 at 8% per year for 5 years? (a) ₹3360 (b) ₹2800 (c) ₹9800 (d) ₹560
8. 8.What is the simple interest on ₹5000 at 5% per year for 2 years? (a) ₹250 (b) ₹5500 (c) ₹750 (d) ₹500
9. 9.₹4500 is invested at 7% per year simple interest. What is the amount after 2 years? (a) ₹4815 (b) ₹5130 (c) ₹630 (d) ₹5445
10. 10.The simple interest on ₹6000 for 2 years is ₹1080. What is the rate per year? (a) 18% (b) 10% (c) 8% (d) 9%
11. 11.In how many years will ₹3000 earn ₹600 simple interest at 10% per year? (a) 4 years (b) 2 years (c) 1 year (d) 3 years
12. 12.What is the simple interest on ₹9500 at 3% per year for 2 years? (a) ₹285 (b) ₹855 (c) ₹10070 (d) ₹570
13. 13.In how many years will ₹3000 earn ₹720 simple interest at 8% per year? (a) 2 years (b) 6 years (c) 3 years (d) 4 years
14. 14.What is the simple interest on ₹8500 at 8% per year for 2 years? (a) ₹2040 (b) ₹680 (c) ₹1360 (d) ₹9860
15. 15.The simple interest on ₹5500 for 4 years is ₹1100. What is the rate per year? (a) 5% (b) 6% (c) 4% (d) 20%
16. 16.₹10000 is invested at 9% per year simple interest. What is the amount after 5 years? (a) ₹4500 (b) ₹14500 (c) ₹15400 (d) ₹10900
17. 17.₹7500 is invested at 4% per year simple interest. What is the amount after 5 years? (a) ₹1500 (b) ₹7800 (c) ₹9300 (d) ₹9000
18. 18.₹4000 is invested at 12% per year simple interest. What is the amount after 5 years? (a) ₹6400 (b) ₹2400 (c) ₹4480 (d) ₹6880
19. 19.₹7500 is invested at 6% per year simple interest. What is the amount after 4 years? (a) ₹7950 (b) ₹9750 (c) ₹1800 (d) ₹9300
20. 20.The simple interest on ₹1500 for 5 years is ₹750. What is the rate per year? (a) 11% (b) 50% (c) 9% (d) 10%
21. 21.₹2000 is invested at 11% per year simple interest. What is the amount after 4 years? (a) ₹2880 (b) ₹3100 (c) ₹2220 (d) ₹880
22. 22.₹1500 is invested at 2% per year simple interest. What is the amount after 4 years? (a) ₹1650 (b) ₹120 (c) ₹1620 (d) ₹1530
23. 23.₹2000 is invested at 2% per year simple interest. What is the amount after 3 years? (a) ₹120 (b) ₹2040 (c) ₹2120 (d) ₹2160
24. 24.What is the simple interest on ₹3000 at 7% per year for 2 years? (a) ₹630 (b) ₹210 (c) ₹3420 (d) ₹420
25. 25.The simple interest on ₹3500 for 2 years is ₹210. What is the rate per year? (a) 6% (b) 2% (c) 3% (d) 4%
26. 26.₹8500 is invested at 2% per year simple interest. What is the amount after 2 years? (a) ₹8670 (b) ₹340 (c) ₹9010 (d) ₹8840
27. 27.₹4000 is invested at 2% per year simple interest. What is the amount after 5 years? (a) ₹4080 (b) ₹400 (c) ₹4480 (d) ₹4400
28. 28.In how many years will ₹4500 earn ₹270 simple interest at 2% per year? (a) 3 years (b) 2 years (c) 6 years (d) 4 years
29. 29.The simple interest on ₹1000 for 4 years is ₹200. What is the rate per year? (a) 5% (b) 4% (c) 20% (d) 6%
30. 30.What is the simple interest on ₹5000 at 5% per year for 4 years? (a) ₹1000 (b) ₹6000 (c) ₹250 (d) ₹1250
31. 31.₹9000 is invested at 4% per year simple interest. What is the amount after 3 years? (a) ₹10440 (b) ₹1080 (c) ₹10080 (d) ₹9360
32. 32.₹5500 is invested at 2% per year simple interest. What is the amount after 3 years? (a) ₹330 (b) ₹5940 (c) ₹5830 (d) ₹5610
33. 33.What is the simple interest on ₹2000 at 3% per year for 3 years? (a) ₹240 (b) ₹2180 (c) ₹180 (d) ₹60
34. 34.₹7500 is invested at 9% per year simple interest. What is the amount after 4 years? (a) ₹2700 (b) ₹10200 (c) ₹8175 (d) ₹10875
35. 35.₹1000 is invested at 6% per year simple interest. What is the amount after 5 years? (a) ₹300 (b) ₹1360 (c) ₹1300 (d) ₹1060
36. 36.The simple interest on ₹8500 for 4 years is ₹2720. What is the rate per year? (a) 9% (b) 7% (c) 8% (d) 32%
37. 37.What is the simple interest on ₹9000 at 3% per year for 2 years? (a) ₹9540 (b) ₹270 (c) ₹810 (d) ₹540
38. 38.The simple interest on ₹2000 for 4 years is ₹800. What is the rate per year? (a) 11% (b) 9% (c) 40% (d) 10%
39. 39.₹9500 is invested at 7% per year simple interest. What is the amount after 2 years? (a) ₹10830 (b) ₹11495 (c) ₹10165 (d) ₹1330
40. 40.What is the simple interest on ₹1000 at 2% per year for 4 years? (a) ₹80 (b) ₹20 (c) ₹100 (d) ₹1080

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