Simple Interest Worksheet for Maths Olympiad

Maths Olympiad topic 16: Simple interest · Set 871 · 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 ₹4000 earn ₹1120 simple interest at 7% per year? (a) 3 years (b) 8 years (c) 5 years (d) 4 years
2. 2.What is the simple interest on ₹1500 at 3% per year for 2 years? (a) ₹1590 (b) ₹45 (c) ₹135 (d) ₹90
3. 3.The simple interest on ₹7500 for 2 years is ₹1800. What is the rate per year? (a) 24% (b) 12% (c) 11% (d) 13%
4. 4.₹5500 is invested at 2% per year simple interest. What is the amount after 3 years? (a) ₹5610 (b) ₹330 (c) ₹5940 (d) ₹5830
5. 5.What is the simple interest on ₹5000 at 4% per year for 4 years? (a) ₹5800 (b) ₹800 (c) ₹1000 (d) ₹200
6. 6.The simple interest on ₹7500 for 4 years is ₹1500. What is the rate per year? (a) 4% (b) 20% (c) 5% (d) 6%
7. 7.In how many years will ₹5500 earn ₹3025 simple interest at 11% per year? (a) 5 years (b) 10 years (c) 6 years (d) 4 years
8. 8.₹1000 is invested at 8% per year simple interest. What is the amount after 4 years? (a) ₹1320 (b) ₹1080 (c) ₹320 (d) ₹1400
9. 9.What is the simple interest on ₹8000 at 2% per year for 3 years? (a) ₹480 (b) ₹640 (c) ₹160 (d) ₹8480
10. 10.₹7500 is invested at 7% per year simple interest. What is the amount after 2 years? (a) ₹1050 (b) ₹8550 (c) ₹8025 (d) ₹9075
11. 11.The simple interest on ₹3000 for 3 years is ₹180. What is the rate per year? (a) 1% (b) 3% (c) 2% (d) 6%
12. 12.₹7500 is invested at 5% per year simple interest. What is the amount after 2 years? (a) ₹750 (b) ₹7875 (c) ₹8625 (d) ₹8250
13. 13.The simple interest on ₹3500 for 4 years is ₹420. What is the rate per year? (a) 4% (b) 2% (c) 3% (d) 12%
14. 14.In how many years will ₹5500 earn ₹1375 simple interest at 5% per year? (a) 5 years (b) 4 years (c) 6 years (d) 10 years
15. 15.What is the simple interest on ₹10000 at 4% per year for 4 years? (a) ₹400 (b) ₹11600 (c) ₹2000 (d) ₹1600
16. 16.What is the simple interest on ₹6500 at 10% per year for 4 years? (a) ₹2600 (b) ₹9100 (c) ₹3250 (d) ₹650
17. 17.In how many years will ₹5000 earn ₹800 simple interest at 8% per year? (a) 3 years (b) 4 years (c) 1 year (d) 2 years
18. 18.In how many years will ₹10000 earn ₹3300 simple interest at 11% per year? (a) 6 years (b) 2 years (c) 4 years (d) 3 years
19. 19.What is the simple interest on ₹1500 at 12% per year for 5 years? (a) ₹2400 (b) ₹1080 (c) ₹180 (d) ₹900
20. 20.₹6500 is invested at 7% per year simple interest. What is the amount after 4 years? (a) ₹8320 (b) ₹6955 (c) ₹8775 (d) ₹1820
21. 21.What is the simple interest on ₹2000 at 9% per year for 2 years? (a) ₹2360 (b) ₹540 (c) ₹180 (d) ₹360
22. 22.In how many years will ₹8500 earn ₹1785 simple interest at 7% per year? (a) 4 years (b) 3 years (c) 2 years (d) 6 years
23. 23.The simple interest on ₹9500 for 5 years is ₹950. What is the rate per year? (a) 3% (b) 10% (c) 2% (d) 1%
24. 24.₹2000 is invested at 4% per year simple interest. What is the amount after 5 years? (a) ₹2480 (b) ₹2080 (c) ₹2400 (d) ₹400
25. 25.In how many years will ₹1000 earn ₹350 simple interest at 7% per year? (a) 10 years (b) 6 years (c) 5 years (d) 4 years
26. 26.₹1000 is invested at 10% per year simple interest. What is the amount after 2 years? (a) ₹1300 (b) ₹200 (c) ₹1200 (d) ₹1100
27. 27.₹3500 is invested at 5% per year simple interest. What is the amount after 2 years? (a) ₹3675 (b) ₹4025 (c) ₹350 (d) ₹3850
28. 28.In how many years will ₹7000 earn ₹1120 simple interest at 4% per year? (a) 3 years (b) 8 years (c) 4 years (d) 5 years
29. 29.What is the simple interest on ₹1500 at 8% per year for 4 years? (a) ₹1980 (b) ₹600 (c) ₹120 (d) ₹480
30. 30.What is the simple interest on ₹8000 at 10% per year for 2 years? (a) ₹2400 (b) ₹9600 (c) ₹1600 (d) ₹800
31. 31.In how many years will ₹3500 earn ₹210 simple interest at 3% per year? (a) 1 year (b) 4 years (c) 2 years (d) 3 years
32. 32.The simple interest on ₹4000 for 3 years is ₹720. What is the rate per year? (a) 6% (b) 18% (c) 5% (d) 7%
33. 33.What is the simple interest on ₹1500 at 10% per year for 2 years? (a) ₹450 (b) ₹300 (c) ₹1800 (d) ₹150
34. 34.In how many years will ₹3500 earn ₹1750 simple interest at 10% per year? (a) 10 years (b) 4 years (c) 5 years (d) 6 years
35. 35.In how many years will ₹1000 earn ₹300 simple interest at 10% per year? (a) 6 years (b) 3 years (c) 2 years (d) 4 years
36. 36.The simple interest on ₹2500 for 4 years is ₹500. What is the rate per year? (a) 6% (b) 5% (c) 4% (d) 20%
37. 37.What is the simple interest on ₹10000 at 10% per year for 3 years? (a) ₹3000 (b) ₹4000 (c) ₹1000 (d) ₹13000
38. 38.In how many years will ₹5000 earn ₹900 simple interest at 9% per year? (a) 4 years (b) 2 years (c) 1 year (d) 3 years
39. 39.The simple interest on ₹3000 for 3 years is ₹450. What is the rate per year? (a) 15% (b) 6% (c) 4% (d) 5%
40. 40.What is the simple interest on ₹8500 at 5% per year for 5 years? (a) ₹425 (b) ₹2125 (c) ₹2550 (d) ₹10625

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