Simple Interest Worksheet for Maths Olympiad

Maths Olympiad topic 16: Simple interest · Set 213 · 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 ₹8000 earn ₹960 simple interest at 4% per year? (a) 6 years (b) 4 years (c) 2 years (d) 3 years
2. 2.The simple interest on ₹2500 for 2 years is ₹250. What is the rate per year? (a) 5% (b) 10% (c) 6% (d) 4%
3. 3.In how many years will ₹7000 earn ₹2100 simple interest at 6% per year? (a) 6 years (b) 4 years (c) 10 years (d) 5 years
4. 4.₹2500 is invested at 6% per year simple interest. What is the amount after 5 years? (a) ₹3250 (b) ₹750 (c) ₹3400 (d) ₹2650
5. 5.The simple interest on ₹7500 for 5 years is ₹4125. What is the rate per year? (a) 10% (b) 55% (c) 11% (d) 12%
6. 6.₹2500 is invested at 5% per year simple interest. What is the amount after 3 years? (a) ₹375 (b) ₹2625 (c) ₹3000 (d) ₹2875
7. 7.The simple interest on ₹9000 for 5 years is ₹4050. What is the rate per year? (a) 9% (b) 8% (c) 10% (d) 45%
8. 8.₹10000 is invested at 9% per year simple interest. What is the amount after 4 years? (a) ₹10900 (b) ₹14500 (c) ₹13600 (d) ₹3600
9. 9.In how many years will ₹1500 earn ₹540 simple interest at 9% per year? (a) 4 years (b) 8 years (c) 3 years (d) 5 years
10. 10.The simple interest on ₹4500 for 5 years is ₹1800. What is the rate per year? (a) 9% (b) 8% (c) 40% (d) 7%
11. 11.In how many years will ₹10000 earn ₹1600 simple interest at 4% per year? (a) 5 years (b) 8 years (c) 3 years (d) 4 years
12. 12.The simple interest on ₹9000 for 5 years is ₹3150. What is the rate per year? (a) 7% (b) 8% (c) 6% (d) 35%
13. 13.What is the simple interest on ₹3000 at 9% per year for 2 years? (a) ₹540 (b) ₹810 (c) ₹3540 (d) ₹270
14. 14.In how many years will ₹3000 earn ₹480 simple interest at 4% per year? (a) 4 years (b) 8 years (c) 5 years (d) 3 years
15. 15.What is the simple interest on ₹4000 at 7% per year for 4 years? (a) ₹280 (b) ₹5120 (c) ₹1120 (d) ₹1400
16. 16.In how many years will ₹2000 earn ₹400 simple interest at 5% per year? (a) 8 years (b) 3 years (c) 5 years (d) 4 years
17. 17.In how many years will ₹7000 earn ₹1890 simple interest at 9% per year? (a) 6 years (b) 3 years (c) 2 years (d) 4 years
18. 18.₹1000 is invested at 7% per year simple interest. What is the amount after 5 years? (a) ₹1350 (b) ₹350 (c) ₹1070 (d) ₹1420
19. 19.In how many years will ₹7000 earn ₹1050 simple interest at 5% per year? (a) 4 years (b) 2 years (c) 6 years (d) 3 years
20. 20.What is the simple interest on ₹4000 at 9% per year for 3 years? (a) ₹5080 (b) ₹360 (c) ₹1080 (d) ₹1440
21. 21.The simple interest on ₹9500 for 4 years is ₹2660. What is the rate per year? (a) 28% (b) 8% (c) 7% (d) 6%
22. 22.The simple interest on ₹3500 for 3 years is ₹840. What is the rate per year? (a) 24% (b) 7% (c) 8% (d) 9%
23. 23.In how many years will ₹6500 earn ₹1950 simple interest at 6% per year? (a) 4 years (b) 10 years (c) 5 years (d) 6 years
24. 24.₹4500 is invested at 3% per year simple interest. What is the amount after 2 years? (a) ₹4905 (b) ₹270 (c) ₹4770 (d) ₹4635
25. 25.₹4000 is invested at 11% per year simple interest. What is the amount after 5 years? (a) ₹4440 (b) ₹6200 (c) ₹2200 (d) ₹6640
26. 26.In how many years will ₹8000 earn ₹480 simple interest at 2% per year? (a) 4 years (b) 6 years (c) 2 years (d) 3 years
27. 27.In how many years will ₹2500 earn ₹375 simple interest at 5% per year? (a) 3 years (b) 2 years (c) 4 years (d) 6 years
28. 28.The simple interest on ₹4500 for 5 years is ₹2475. What is the rate per year? (a) 55% (b) 10% (c) 12% (d) 11%
29. 29.In how many years will ₹7500 earn ₹1800 simple interest at 12% per year? (a) 4 years (b) 1 year (c) 2 years (d) 3 years
30. 30.In how many years will ₹6500 earn ₹1040 simple interest at 8% per year? (a) 3 years (b) 1 year (c) 4 years (d) 2 years
31. 31.The simple interest on ₹6500 for 4 years is ₹520. What is the rate per year? (a) 8% (b) 1% (c) 3% (d) 2%
32. 32.In how many years will ₹3000 earn ₹360 simple interest at 3% per year? (a) 5 years (b) 3 years (c) 8 years (d) 4 years
33. 33.In how many years will ₹4000 earn ₹2000 simple interest at 10% per year? (a) 10 years (b) 6 years (c) 5 years (d) 4 years
34. 34.₹5500 is invested at 10% per year simple interest. What is the amount after 4 years? (a) ₹8250 (b) ₹7700 (c) ₹6050 (d) ₹2200
35. 35.What is the simple interest on ₹2500 at 9% per year for 2 years? (a) ₹225 (b) ₹450 (c) ₹675 (d) ₹2950
36. 36.₹8000 is invested at 6% per year simple interest. What is the amount after 2 years? (a) ₹960 (b) ₹8960 (c) ₹8480 (d) ₹9440
37. 37.₹4000 is invested at 10% per year simple interest. What is the amount after 2 years? (a) ₹4400 (b) ₹800 (c) ₹5200 (d) ₹4800
38. 38.The simple interest on ₹2500 for 5 years is ₹500. What is the rate per year? (a) 20% (b) 5% (c) 3% (d) 4%
39. 39.The simple interest on ₹9500 for 3 years is ₹1425. What is the rate per year? (a) 6% (b) 5% (c) 15% (d) 4%
40. 40.What is the simple interest on ₹4500 at 11% per year for 3 years? (a) ₹1485 (b) ₹1980 (c) ₹495 (d) ₹5985

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