Simple Interest Worksheet for Maths Olympiad

Maths Olympiad topic 16: Simple interest · Set 555 · 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 ₹1000 at 6% per year for 3 years? (a) ₹60 (b) ₹1180 (c) ₹240 (d) ₹180
2. 2.The simple interest on ₹7500 for 5 years is ₹2250. What is the rate per year? (a) 7% (b) 5% (c) 30% (d) 6%
3. 3.₹5000 is invested at 12% per year simple interest. What is the amount after 5 years? (a) ₹5600 (b) ₹8600 (c) ₹3000 (d) ₹8000
4. 4.In how many years will ₹8000 earn ₹3200 simple interest at 10% per year? (a) 4 years (b) 5 years (c) 3 years (d) 8 years
5. 5.₹7000 is invested at 6% per year simple interest. What is the amount after 5 years? (a) ₹9520 (b) ₹9100 (c) ₹2100 (d) ₹7420
6. 6.₹7500 is invested at 7% per year simple interest. What is the amount after 3 years? (a) ₹9600 (b) ₹8025 (c) ₹1575 (d) ₹9075
7. 7.In how many years will ₹10000 earn ₹2100 simple interest at 7% per year? (a) 6 years (b) 4 years (c) 3 years (d) 2 years
8. 8.₹8500 is invested at 6% per year simple interest. What is the amount after 4 years? (a) ₹2040 (b) ₹9010 (c) ₹10540 (d) ₹11050
9. 9.The simple interest on ₹1000 for 5 years is ₹200. What is the rate per year? (a) 5% (b) 3% (c) 20% (d) 4%
10. 10.What is the simple interest on ₹2000 at 3% per year for 5 years? (a) ₹2300 (b) ₹60 (c) ₹300 (d) ₹360
11. 11.The simple interest on ₹7000 for 5 years is ₹2100. What is the rate per year? (a) 7% (b) 30% (c) 6% (d) 5%
12. 12.₹9000 is invested at 2% per year simple interest. What is the amount after 3 years? (a) ₹9180 (b) ₹540 (c) ₹9540 (d) ₹9720
13. 13.In how many years will ₹5000 earn ₹500 simple interest at 2% per year? (a) 5 years (b) 10 years (c) 4 years (d) 6 years
14. 14.In how many years will ₹4000 earn ₹480 simple interest at 3% per year? (a) 8 years (b) 3 years (c) 4 years (d) 5 years
15. 15.The simple interest on ₹5500 for 2 years is ₹1210. What is the rate per year? (a) 22% (b) 12% (c) 10% (d) 11%
16. 16.What is the simple interest on ₹1000 at 11% per year for 4 years? (a) ₹110 (b) ₹550 (c) ₹1440 (d) ₹440
17. 17.The simple interest on ₹1000 for 4 years is ₹80. What is the rate per year? (a) 3% (b) 1% (c) 8% (d) 2%
18. 18.₹3000 is invested at 7% per year simple interest. What is the amount after 2 years? (a) ₹420 (b) ₹3210 (c) ₹3630 (d) ₹3420
19. 19.₹1500 is invested at 11% per year simple interest. What is the amount after 3 years? (a) ₹1665 (b) ₹495 (c) ₹2160 (d) ₹1995
20. 20.What is the simple interest on ₹3000 at 5% per year for 4 years? (a) ₹150 (b) ₹600 (c) ₹3600 (d) ₹750
21. 21.What is the simple interest on ₹1000 at 9% per year for 2 years? (a) ₹1180 (b) ₹270 (c) ₹180 (d) ₹90
22. 22.What is the simple interest on ₹3000 at 11% per year for 3 years? (a) ₹1320 (b) ₹330 (c) ₹990 (d) ₹3990
23. 23.The simple interest on ₹2500 for 3 years is ₹375. What is the rate per year? (a) 15% (b) 5% (c) 6% (d) 4%
24. 24.₹8500 is invested at 6% per year simple interest. What is the amount after 3 years? (a) ₹10030 (b) ₹10540 (c) ₹1530 (d) ₹9010
25. 25.What is the simple interest on ₹4500 at 4% per year for 5 years? (a) ₹180 (b) ₹5400 (c) ₹900 (d) ₹1080
26. 26.₹9500 is invested at 2% per year simple interest. What is the amount after 5 years? (a) ₹10640 (b) ₹950 (c) ₹10450 (d) ₹9690
27. 27.The simple interest on ₹5500 for 3 years is ₹1155. What is the rate per year? (a) 21% (b) 7% (c) 8% (d) 6%
28. 28.What is the simple interest on ₹5500 at 11% per year for 2 years? (a) ₹1210 (b) ₹1815 (c) ₹605 (d) ₹6710
29. 29.The simple interest on ₹3000 for 2 years is ₹720. What is the rate per year? (a) 24% (b) 13% (c) 12% (d) 11%
30. 30.In how many years will ₹1500 earn ₹270 simple interest at 6% per year? (a) 6 years (b) 3 years (c) 2 years (d) 4 years
31. 31.The simple interest on ₹8000 for 2 years is ₹960. What is the rate per year? (a) 12% (b) 5% (c) 6% (d) 7%
32. 32.What is the simple interest on ₹9500 at 4% per year for 3 years? (a) ₹1140 (b) ₹1520 (c) ₹380 (d) ₹10640
33. 33.₹2500 is invested at 12% per year simple interest. What is the amount after 4 years? (a) ₹4000 (b) ₹3700 (c) ₹2800 (d) ₹1200
34. 34.In how many years will ₹6000 earn ₹960 simple interest at 8% per year? (a) 2 years (b) 1 year (c) 4 years (d) 3 years
35. 35.In how many years will ₹9000 earn ₹1440 simple interest at 4% per year? (a) 8 years (b) 5 years (c) 4 years (d) 3 years
36. 36.The simple interest on ₹3500 for 5 years is ₹700. What is the rate per year? (a) 5% (b) 20% (c) 4% (d) 3%
37. 37.₹1500 is invested at 6% per year simple interest. What is the amount after 2 years? (a) ₹1590 (b) ₹1680 (c) ₹180 (d) ₹1770
38. 38.What is the simple interest on ₹4500 at 4% per year for 3 years? (a) ₹720 (b) ₹540 (c) ₹180 (d) ₹5040
39. 39.₹4000 is invested at 2% per year simple interest. What is the amount after 4 years? (a) ₹320 (b) ₹4080 (c) ₹4400 (d) ₹4320
40. 40.What is the simple interest on ₹3500 at 12% per year for 4 years? (a) ₹420 (b) ₹1680 (c) ₹2100 (d) ₹5180

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