Simple Interest Worksheet for Maths Olympiad

Maths Olympiad topic 16: Simple interest · Set 945 · 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 ₹7500 for 5 years is ₹2625. What is the rate per year? (a) 6% (b) 8% (c) 35% (d) 7%
2. 2.The simple interest on ₹3500 for 5 years is ₹525. What is the rate per year? (a) 3% (b) 2% (c) 4% (d) 15%
3. 3.What is the simple interest on ₹8000 at 7% per year for 5 years? (a) ₹560 (b) ₹3360 (c) ₹10800 (d) ₹2800
4. 4.The simple interest on ₹8000 for 2 years is ₹1760. What is the rate per year? (a) 12% (b) 10% (c) 22% (d) 11%
5. 5.In how many years will ₹1000 earn ₹550 simple interest at 11% per year? (a) 5 years (b) 6 years (c) 10 years (d) 4 years
6. 6.The simple interest on ₹4000 for 5 years is ₹1000. What is the rate per year? (a) 5% (b) 25% (c) 6% (d) 4%
7. 7.The simple interest on ₹1500 for 5 years is ₹300. What is the rate per year? (a) 5% (b) 4% (c) 3% (d) 20%
8. 8.In how many years will ₹1500 earn ₹180 simple interest at 4% per year? (a) 6 years (b) 4 years (c) 3 years (d) 2 years
9. 9.What is the simple interest on ₹7000 at 4% per year for 2 years? (a) ₹7560 (b) ₹280 (c) ₹840 (d) ₹560
10. 10.What is the simple interest on ₹9500 at 9% per year for 2 years? (a) ₹2565 (b) ₹11210 (c) ₹855 (d) ₹1710
11. 11.₹1500 is invested at 7% per year simple interest. What is the amount after 4 years? (a) ₹2025 (b) ₹1920 (c) ₹420 (d) ₹1605
12. 12.₹10000 is invested at 3% per year simple interest. What is the amount after 3 years? (a) ₹11200 (b) ₹10300 (c) ₹900 (d) ₹10900
13. 13.The simple interest on ₹2500 for 4 years is ₹1200. What is the rate per year? (a) 13% (b) 11% (c) 48% (d) 12%
14. 14.₹1500 is invested at 8% per year simple interest. What is the amount after 5 years? (a) ₹600 (b) ₹1620 (c) ₹2100 (d) ₹2220
15. 15.In how many years will ₹3000 earn ₹1050 simple interest at 7% per year? (a) 4 years (b) 10 years (c) 6 years (d) 5 years
16. 16.The simple interest on ₹7000 for 3 years is ₹1470. What is the rate per year? (a) 6% (b) 21% (c) 8% (d) 7%
17. 17.The simple interest on ₹7500 for 3 years is ₹1350. What is the rate per year? (a) 18% (b) 5% (c) 7% (d) 6%
18. 18.What is the simple interest on ₹2000 at 6% per year for 5 years? (a) ₹600 (b) ₹120 (c) ₹2600 (d) ₹720
19. 19.The simple interest on ₹6000 for 3 years is ₹540. What is the rate per year? (a) 2% (b) 4% (c) 9% (d) 3%
20. 20.What is the simple interest on ₹9500 at 7% per year for 5 years? (a) ₹3990 (b) ₹3325 (c) ₹665 (d) ₹12825
21. 21.In how many years will ₹2500 earn ₹900 simple interest at 12% per year? (a) 6 years (b) 2 years (c) 3 years (d) 4 years
22. 22.The simple interest on ₹1000 for 3 years is ₹150. What is the rate per year? (a) 4% (b) 6% (c) 5% (d) 15%
23. 23.In how many years will ₹5000 earn ₹1200 simple interest at 12% per year? (a) 1 year (b) 3 years (c) 4 years (d) 2 years
24. 24.The simple interest on ₹6500 for 5 years is ₹1625. What is the rate per year? (a) 6% (b) 25% (c) 4% (d) 5%
25. 25.₹4500 is invested at 10% per year simple interest. What is the amount after 5 years? (a) ₹7200 (b) ₹2250 (c) ₹4950 (d) ₹6750
26. 26.₹2500 is invested at 12% per year simple interest. What is the amount after 2 years? (a) ₹600 (b) ₹2800 (c) ₹3400 (d) ₹3100
27. 27.What is the simple interest on ₹9000 at 7% per year for 3 years? (a) ₹10890 (b) ₹630 (c) ₹1890 (d) ₹2520
28. 28.What is the simple interest on ₹2000 at 5% per year for 5 years? (a) ₹2500 (b) ₹100 (c) ₹500 (d) ₹600
29. 29.What is the simple interest on ₹7000 at 11% per year for 5 years? (a) ₹10850 (b) ₹770 (c) ₹4620 (d) ₹3850
30. 30.In how many years will ₹5000 earn ₹1500 simple interest at 10% per year? (a) 3 years (b) 4 years (c) 6 years (d) 2 years
31. 31.What is the simple interest on ₹4500 at 8% per year for 5 years? (a) ₹2160 (b) ₹360 (c) ₹1800 (d) ₹6300
32. 32.₹8000 is invested at 7% per year simple interest. What is the amount after 2 years? (a) ₹9680 (b) ₹1120 (c) ₹9120 (d) ₹8560
33. 33.₹1500 is invested at 5% per year simple interest. What is the amount after 5 years? (a) ₹1875 (b) ₹1575 (c) ₹1950 (d) ₹375
34. 34.What is the simple interest on ₹7500 at 6% per year for 2 years? (a) ₹8400 (b) ₹450 (c) ₹900 (d) ₹1350
35. 35.In how many years will ₹6000 earn ₹960 simple interest at 8% per year? (a) 3 years (b) 1 year (c) 4 years (d) 2 years
36. 36.In how many years will ₹3000 earn ₹120 simple interest at 2% per year? (a) 3 years (b) 4 years (c) 2 years (d) 1 year
37. 37.₹1000 is invested at 9% per year simple interest. What is the amount after 3 years? (a) ₹270 (b) ₹1270 (c) ₹1360 (d) ₹1090
38. 38.The simple interest on ₹4000 for 4 years is ₹1760. What is the rate per year? (a) 11% (b) 10% (c) 12% (d) 44%
39. 39.In how many years will ₹4000 earn ₹360 simple interest at 3% per year? (a) 2 years (b) 6 years (c) 4 years (d) 3 years
40. 40.In how many years will ₹6500 earn ₹975 simple interest at 3% per year? (a) 4 years (b) 10 years (c) 6 years (d) 5 years

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