Simple Interest Worksheet for Maths Olympiad

Maths Olympiad topic 16: Simple interest · Set 63 · 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 ₹1000 earn ₹360 simple interest at 9% per year? (a) 8 years (b) 3 years (c) 5 years (d) 4 years
2. 2.What is the simple interest on ₹3000 at 11% per year for 3 years? (a) ₹1320 (b) ₹3990 (c) ₹990 (d) ₹330
3. 3.What is the simple interest on ₹6500 at 7% per year for 5 years? (a) ₹2730 (b) ₹8775 (c) ₹455 (d) ₹2275
4. 4.What is the simple interest on ₹4000 at 7% per year for 5 years? (a) ₹1400 (b) ₹1680 (c) ₹280 (d) ₹5400
5. 5.What is the simple interest on ₹6000 at 10% per year for 5 years? (a) ₹3000 (b) ₹3600 (c) ₹9000 (d) ₹600
6. 6.The simple interest on ₹3500 for 2 years is ₹210. What is the rate per year? (a) 6% (b) 3% (c) 2% (d) 4%
7. 7.What is the simple interest on ₹2500 at 8% per year for 5 years? (a) ₹200 (b) ₹1000 (c) ₹3500 (d) ₹1200
8. 8.The simple interest on ₹8500 for 4 years is ₹1700. What is the rate per year? (a) 4% (b) 6% (c) 20% (d) 5%
9. 9.In how many years will ₹8500 earn ₹4080 simple interest at 12% per year? (a) 8 years (b) 4 years (c) 5 years (d) 3 years
10. 10.What is the simple interest on ₹3500 at 9% per year for 4 years? (a) ₹1575 (b) ₹4760 (c) ₹315 (d) ₹1260
11. 11.₹8500 is invested at 12% per year simple interest. What is the amount after 3 years? (a) ₹11560 (b) ₹3060 (c) ₹12580 (d) ₹9520
12. 12.The simple interest on ₹3500 for 5 years is ₹2100. What is the rate per year? (a) 12% (b) 13% (c) 11% (d) 60%
13. 13.What is the simple interest on ₹2500 at 12% per year for 3 years? (a) ₹300 (b) ₹1200 (c) ₹900 (d) ₹3400
14. 14.What is the simple interest on ₹9500 at 7% per year for 3 years? (a) ₹1995 (b) ₹2660 (c) ₹665 (d) ₹11495
15. 15.₹4500 is invested at 4% per year simple interest. What is the amount after 4 years? (a) ₹4680 (b) ₹5400 (c) ₹5220 (d) ₹720
16. 16.The simple interest on ₹2500 for 4 years is ₹900. What is the rate per year? (a) 10% (b) 8% (c) 36% (d) 9%
17. 17.What is the simple interest on ₹8500 at 9% per year for 5 years? (a) ₹3825 (b) ₹4590 (c) ₹765 (d) ₹12325
18. 18.The simple interest on ₹1500 for 3 years is ₹405. What is the rate per year? (a) 27% (b) 9% (c) 8% (d) 10%
19. 19.In how many years will ₹2000 earn ₹800 simple interest at 8% per year? (a) 10 years (b) 4 years (c) 6 years (d) 5 years
20. 20.In how many years will ₹10000 earn ₹1000 simple interest at 5% per year? (a) 3 years (b) 4 years (c) 2 years (d) 1 year
21. 21.₹6000 is invested at 7% per year simple interest. What is the amount after 4 years? (a) ₹8100 (b) ₹1680 (c) ₹7680 (d) ₹6420
22. 22.₹7500 is invested at 4% per year simple interest. What is the amount after 3 years? (a) ₹8700 (b) ₹900 (c) ₹7800 (d) ₹8400
23. 23.The simple interest on ₹9000 for 5 years is ₹3600. What is the rate per year? (a) 9% (b) 40% (c) 7% (d) 8%
24. 24.₹10000 is invested at 6% per year simple interest. What is the amount after 3 years? (a) ₹1800 (b) ₹12400 (c) ₹10600 (d) ₹11800
25. 25.What is the simple interest on ₹3000 at 5% per year for 3 years? (a) ₹3450 (b) ₹450 (c) ₹600 (d) ₹150
26. 26.In how many years will ₹8000 earn ₹3200 simple interest at 8% per year? (a) 6 years (b) 5 years (c) 10 years (d) 4 years
27. 27.What is the simple interest on ₹1000 at 6% per year for 3 years? (a) ₹180 (b) ₹240 (c) ₹1180 (d) ₹60
28. 28.In how many years will ₹1500 earn ₹90 simple interest at 2% per year? (a) 2 years (b) 3 years (c) 6 years (d) 4 years
29. 29.In how many years will ₹8500 earn ₹2040 simple interest at 6% per year? (a) 5 years (b) 3 years (c) 8 years (d) 4 years
30. 30.In how many years will ₹5000 earn ₹1200 simple interest at 6% per year? (a) 4 years (b) 3 years (c) 8 years (d) 5 years
31. 31.The simple interest on ₹9000 for 4 years is ₹1080. What is the rate per year? (a) 3% (b) 4% (c) 2% (d) 12%
32. 32.What is the simple interest on ₹6000 at 7% per year for 3 years? (a) ₹1260 (b) ₹1680 (c) ₹420 (d) ₹7260
33. 33.In how many years will ₹1500 earn ₹360 simple interest at 8% per year? (a) 2 years (b) 6 years (c) 4 years (d) 3 years
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.What is the simple interest on ₹6000 at 5% per year for 3 years? (a) ₹1200 (b) ₹6900 (c) ₹300 (d) ₹900
36. 36.₹2000 is invested at 3% per year simple interest. What is the amount after 4 years? (a) ₹2060 (b) ₹2300 (c) ₹240 (d) ₹2240
37. 37.The simple interest on ₹7000 for 4 years is ₹1400. What is the rate per year? (a) 5% (b) 6% (c) 4% (d) 20%
38. 38.What is the simple interest on ₹9000 at 5% per year for 5 years? (a) ₹450 (b) ₹2700 (c) ₹11250 (d) ₹2250
39. 39.What is the simple interest on ₹1000 at 8% per year for 4 years? (a) ₹80 (b) ₹400 (c) ₹320 (d) ₹1320
40. 40.The simple interest on ₹3500 for 3 years is ₹525. What is the rate per year? (a) 15% (b) 6% (c) 5% (d) 4%

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