Simple Interest Worksheet for Maths Olympiad

Maths Olympiad topic 16: Simple interest · Set 233 · 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 ₹9500 earn ₹950 simple interest at 5% per year? (a) 2 years (b) 1 year (c) 4 years (d) 3 years
2. 2.₹7000 is invested at 2% per year simple interest. What is the amount after 4 years? (a) ₹560 (b) ₹7700 (c) ₹7560 (d) ₹7140
3. 3.In how many years will ₹5000 earn ₹1000 simple interest at 4% per year? (a) 6 years (b) 10 years (c) 5 years (d) 4 years
4. 4.In how many years will ₹1000 earn ₹150 simple interest at 3% per year? (a) 4 years (b) 6 years (c) 5 years (d) 10 years
5. 5.The simple interest on ₹1500 for 2 years is ₹150. What is the rate per year? (a) 5% (b) 4% (c) 10% (d) 6%
6. 6.What is the simple interest on ₹2500 at 10% per year for 2 years? (a) ₹750 (b) ₹500 (c) ₹3000 (d) ₹250
7. 7.In how many years will ₹5500 earn ₹2420 simple interest at 11% per year? (a) 3 years (b) 8 years (c) 4 years (d) 5 years
8. 8.₹2000 is invested at 6% per year simple interest. What is the amount after 5 years? (a) ₹2600 (b) ₹2720 (c) ₹600 (d) ₹2120
9. 9.₹7500 is invested at 7% per year simple interest. What is the amount after 3 years? (a) ₹8025 (b) ₹9600 (c) ₹9075 (d) ₹1575
10. 10.In how many years will ₹5500 earn ₹990 simple interest at 6% per year? (a) 2 years (b) 6 years (c) 3 years (d) 4 years
11. 11.₹3000 is invested at 3% per year simple interest. What is the amount after 2 years? (a) ₹3270 (b) ₹3180 (c) ₹3090 (d) ₹180
12. 12.What is the simple interest on ₹1500 at 12% per year for 3 years? (a) ₹540 (b) ₹2040 (c) ₹180 (d) ₹720
13. 13.₹7000 is invested at 11% per year simple interest. What is the amount after 4 years? (a) ₹10850 (b) ₹3080 (c) ₹7770 (d) ₹10080
14. 14.In how many years will ₹5000 earn ₹1500 simple interest at 6% per year? (a) 10 years (b) 5 years (c) 6 years (d) 4 years
15. 15.₹3000 is invested at 6% per year simple interest. What is the amount after 5 years? (a) ₹3180 (b) ₹900 (c) ₹4080 (d) ₹3900
16. 16.₹1500 is invested at 7% per year simple interest. What is the amount after 5 years? (a) ₹1605 (b) ₹2025 (c) ₹2130 (d) ₹525
17. 17.The simple interest on ₹5500 for 4 years is ₹1980. What is the rate per year? (a) 36% (b) 8% (c) 9% (d) 10%
18. 18.The simple interest on ₹6000 for 3 years is ₹2160. What is the rate per year? (a) 11% (b) 12% (c) 36% (d) 13%
19. 19.₹2500 is invested at 12% per year simple interest. What is the amount after 2 years? (a) ₹2800 (b) ₹3100 (c) ₹3400 (d) ₹600
20. 20.In how many years will ₹4000 earn ₹1080 simple interest at 9% per year? (a) 6 years (b) 2 years (c) 3 years (d) 4 years
21. 21.In how many years will ₹5000 earn ₹1650 simple interest at 11% per year? (a) 4 years (b) 2 years (c) 3 years (d) 6 years
22. 22.The simple interest on ₹9000 for 4 years is ₹720. What is the rate per year? (a) 8% (b) 3% (c) 1% (d) 2%
23. 23.The simple interest on ₹6500 for 2 years is ₹1430. What is the rate per year? (a) 12% (b) 22% (c) 10% (d) 11%
24. 24.The simple interest on ₹9500 for 2 years is ₹2280. What is the rate per year? (a) 24% (b) 11% (c) 13% (d) 12%
25. 25.What is the simple interest on ₹3500 at 2% per year for 5 years? (a) ₹70 (b) ₹420 (c) ₹350 (d) ₹3850
26. 26.₹1000 is invested at 2% per year simple interest. What is the amount after 2 years? (a) ₹40 (b) ₹1020 (c) ₹1060 (d) ₹1040
27. 27.What is the simple interest on ₹7000 at 4% per year for 2 years? (a) ₹7560 (b) ₹840 (c) ₹560 (d) ₹280
28. 28.What is the simple interest on ₹2000 at 9% per year for 3 years? (a) ₹2540 (b) ₹180 (c) ₹720 (d) ₹540
29. 29.In how many years will ₹2500 earn ₹525 simple interest at 7% per year? (a) 4 years (b) 6 years (c) 2 years (d) 3 years
30. 30.The simple interest on ₹9000 for 4 years is ₹2880. What is the rate per year? (a) 9% (b) 8% (c) 32% (d) 7%
31. 31.₹2000 is invested at 5% per year simple interest. What is the amount after 3 years? (a) ₹2400 (b) ₹300 (c) ₹2300 (d) ₹2100
32. 32.What is the simple interest on ₹4000 at 3% per year for 4 years? (a) ₹120 (b) ₹600 (c) ₹480 (d) ₹4480
33. 33.The simple interest on ₹7000 for 4 years is ₹840. What is the rate per year? (a) 4% (b) 12% (c) 3% (d) 2%
34. 34.In how many years will ₹3500 earn ₹1225 simple interest at 7% per year? (a) 5 years (b) 4 years (c) 6 years (d) 10 years
35. 35.₹1000 is invested at 12% per year simple interest. What is the amount after 3 years? (a) ₹1360 (b) ₹1480 (c) ₹360 (d) ₹1120
36. 36.₹9000 is invested at 10% per year simple interest. What is the amount after 5 years? (a) ₹9900 (b) ₹14400 (c) ₹4500 (d) ₹13500
37. 37.What is the simple interest on ₹6500 at 8% per year for 4 years? (a) ₹520 (b) ₹8580 (c) ₹2600 (d) ₹2080
38. 38.What is the simple interest on ₹9000 at 3% per year for 2 years? (a) ₹810 (b) ₹9540 (c) ₹540 (d) ₹270
39. 39.The simple interest on ₹7000 for 4 years is ₹1960. What is the rate per year? (a) 28% (b) 8% (c) 6% (d) 7%
40. 40.The simple interest on ₹3000 for 4 years is ₹720. What is the rate per year? (a) 7% (b) 6% (c) 5% (d) 24%

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