Simple Interest Worksheet for Maths Olympiad

Maths Olympiad topic 16: Simple interest · Set 481 · 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 ₹8000 at 12% per year for 3 years? (a) ₹10880 (b) ₹960 (c) ₹3840 (d) ₹2880
2. 2.In how many years will ₹2000 earn ₹300 simple interest at 5% per year? (a) 2 years (b) 4 years (c) 6 years (d) 3 years
3. 3.₹9000 is invested at 5% per year simple interest. What is the amount after 2 years? (a) ₹9900 (b) ₹900 (c) ₹9450 (d) ₹10350
4. 4.In how many years will ₹6500 earn ₹3250 simple interest at 10% per year? (a) 5 years (b) 6 years (c) 10 years (d) 4 years
5. 5.What is the simple interest on ₹9000 at 11% per year for 4 years? (a) ₹990 (b) ₹4950 (c) ₹3960 (d) ₹12960
6. 6.The simple interest on ₹6500 for 5 years is ₹3900. What is the rate per year? (a) 60% (b) 12% (c) 13% (d) 11%
7. 7.What is the simple interest on ₹4500 at 11% per year for 2 years? (a) ₹990 (b) ₹1485 (c) ₹495 (d) ₹5490
8. 8.What is the simple interest on ₹3500 at 3% per year for 5 years? (a) ₹4025 (b) ₹630 (c) ₹525 (d) ₹105
9. 9.What is the simple interest on ₹1500 at 3% per year for 4 years? (a) ₹45 (b) ₹1680 (c) ₹225 (d) ₹180
10. 10.The simple interest on ₹3000 for 2 years is ₹720. What is the rate per year? (a) 11% (b) 12% (c) 13% (d) 24%
11. 11.The simple interest on ₹5000 for 3 years is ₹1200. What is the rate per year? (a) 24% (b) 8% (c) 7% (d) 9%
12. 12.In how many years will ₹4500 earn ₹675 simple interest at 5% per year? (a) 4 years (b) 6 years (c) 2 years (d) 3 years
13. 13.What is the simple interest on ₹2000 at 8% per year for 2 years? (a) ₹320 (b) ₹160 (c) ₹2320 (d) ₹480
14. 14.What is the simple interest on ₹7000 at 11% per year for 3 years? (a) ₹9310 (b) ₹2310 (c) ₹3080 (d) ₹770
15. 15.In how many years will ₹3500 earn ₹560 simple interest at 4% per year? (a) 8 years (b) 5 years (c) 3 years (d) 4 years
16. 16.₹2000 is invested at 9% per year simple interest. What is the amount after 3 years? (a) ₹540 (b) ₹2720 (c) ₹2540 (d) ₹2180
17. 17.₹9500 is invested at 9% per year simple interest. What is the amount after 2 years? (a) ₹10355 (b) ₹12065 (c) ₹1710 (d) ₹11210
18. 18.What is the simple interest on ₹2000 at 10% per year for 5 years? (a) ₹1200 (b) ₹200 (c) ₹1000 (d) ₹3000
19. 19.₹7000 is invested at 5% per year simple interest. What is the amount after 2 years? (a) ₹8050 (b) ₹7700 (c) ₹700 (d) ₹7350
20. 20.The simple interest on ₹6000 for 4 years is ₹1920. What is the rate per year? (a) 9% (b) 7% (c) 32% (d) 8%
21. 21.What is the simple interest on ₹7000 at 12% per year for 4 years? (a) ₹840 (b) ₹10360 (c) ₹3360 (d) ₹4200
22. 22.In how many years will ₹4000 earn ₹1320 simple interest at 11% per year? (a) 2 years (b) 6 years (c) 4 years (d) 3 years
23. 23.₹2000 is invested at 3% per year simple interest. What is the amount after 5 years? (a) ₹300 (b) ₹2060 (c) ₹2360 (d) ₹2300
24. 24.In how many years will ₹8000 earn ₹2400 simple interest at 6% per year? (a) 5 years (b) 4 years (c) 10 years (d) 6 years
25. 25.₹2500 is invested at 12% per year simple interest. What is the amount after 5 years? (a) ₹4300 (b) ₹4000 (c) ₹2800 (d) ₹1500
26. 26.The simple interest on ₹1500 for 5 years is ₹225. What is the rate per year? (a) 4% (b) 15% (c) 2% (d) 3%
27. 27.₹7500 is invested at 4% per year simple interest. What is the amount after 4 years? (a) ₹7800 (b) ₹8700 (c) ₹9000 (d) ₹1200
28. 28.₹6000 is invested at 5% per year simple interest. What is the amount after 2 years? (a) ₹6900 (b) ₹600 (c) ₹6600 (d) ₹6300
29. 29.The simple interest on ₹2500 for 3 years is ₹750. What is the rate per year? (a) 10% (b) 9% (c) 11% (d) 30%
30. 30.In how many years will ₹4000 earn ₹240 simple interest at 2% per year? (a) 3 years (b) 6 years (c) 4 years (d) 2 years
31. 31.In how many years will ₹2500 earn ₹375 simple interest at 3% per year? (a) 4 years (b) 10 years (c) 5 years (d) 6 years
32. 32.₹5500 is invested at 6% per year simple interest. What is the amount after 2 years? (a) ₹660 (b) ₹6490 (c) ₹6160 (d) ₹5830
33. 33.The simple interest on ₹1000 for 5 years is ₹600. What is the rate per year? (a) 60% (b) 11% (c) 13% (d) 12%
34. 34.What is the simple interest on ₹2500 at 4% per year for 4 years? (a) ₹400 (b) ₹2900 (c) ₹500 (d) ₹100
35. 35.The simple interest on ₹3000 for 5 years is ₹900. What is the rate per year? (a) 7% (b) 6% (c) 5% (d) 30%
36. 36.What is the simple interest on ₹6500 at 5% per year for 5 years? (a) ₹325 (b) ₹1950 (c) ₹8125 (d) ₹1625
37. 37.In how many years will ₹1000 earn ₹400 simple interest at 8% per year? (a) 5 years (b) 4 years (c) 10 years (d) 6 years
38. 38.₹4000 is invested at 6% per year simple interest. What is the amount after 3 years? (a) ₹4240 (b) ₹4960 (c) ₹4720 (d) ₹720
39. 39.In how many years will ₹4500 earn ₹720 simple interest at 4% per year? (a) 4 years (b) 5 years (c) 8 years (d) 3 years
40. 40.The simple interest on ₹8000 for 4 years is ₹2880. What is the rate per year? (a) 36% (b) 9% (c) 10% (d) 8%

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