Simple Interest Worksheet for Maths Olympiad

Maths Olympiad topic 16: Simple interest · Set 528 · 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 ₹840 simple interest at 7% per year? (a) 2 years (b) 6 years (c) 4 years (d) 3 years
2. 2.₹10000 is invested at 7% per year simple interest. What is the amount after 2 years? (a) ₹1400 (b) ₹11400 (c) ₹10700 (d) ₹12100
3. 3.₹3000 is invested at 9% per year simple interest. What is the amount after 5 years? (a) ₹1350 (b) ₹4620 (c) ₹4350 (d) ₹3270
4. 4.₹1000 is invested at 8% per year simple interest. What is the amount after 2 years? (a) ₹1080 (b) ₹1240 (c) ₹160 (d) ₹1160
5. 5.In how many years will ₹9500 earn ₹1330 simple interest at 7% per year? (a) 2 years (b) 1 year (c) 4 years (d) 3 years
6. 6.What is the simple interest on ₹1500 at 9% per year for 2 years? (a) ₹1770 (b) ₹135 (c) ₹270 (d) ₹405
7. 7.What is the simple interest on ₹2000 at 10% per year for 2 years? (a) ₹2400 (b) ₹200 (c) ₹600 (d) ₹400
8. 8.The simple interest on ₹10000 for 2 years is ₹2000. What is the rate per year? (a) 20% (b) 10% (c) 11% (d) 9%
9. 9.The simple interest on ₹9500 for 3 years is ₹1425. What is the rate per year? (a) 4% (b) 6% (c) 15% (d) 5%
10. 10.What is the simple interest on ₹4000 at 8% per year for 5 years? (a) ₹1600 (b) ₹5600 (c) ₹320 (d) ₹1920
11. 11.What is the simple interest on ₹1000 at 4% per year for 3 years? (a) ₹40 (b) ₹160 (c) ₹1120 (d) ₹120
12. 12.The simple interest on ₹8000 for 4 years is ₹960. What is the rate per year? (a) 12% (b) 2% (c) 4% (d) 3%
13. 13.In how many years will ₹8500 earn ₹1530 simple interest at 9% per year? (a) 3 years (b) 1 year (c) 2 years (d) 4 years
14. 14.₹8500 is invested at 5% per year simple interest. What is the amount after 5 years? (a) ₹8925 (b) ₹10625 (c) ₹11050 (d) ₹2125
15. 15.₹9000 is invested at 10% per year simple interest. What is the amount after 4 years? (a) ₹3600 (b) ₹9900 (c) ₹12600 (d) ₹13500
16. 16.₹4500 is invested at 5% per year simple interest. What is the amount after 3 years? (a) ₹4725 (b) ₹675 (c) ₹5175 (d) ₹5400
17. 17.In how many years will ₹4500 earn ₹1800 simple interest at 8% per year? (a) 4 years (b) 5 years (c) 6 years (d) 10 years
18. 18.₹2500 is invested at 3% per year simple interest. What is the amount after 4 years? (a) ₹2875 (b) ₹2575 (c) ₹2800 (d) ₹300
19. 19.What is the simple interest on ₹3000 at 6% per year for 2 years? (a) ₹540 (b) ₹360 (c) ₹3360 (d) ₹180
20. 20.The simple interest on ₹5500 for 2 years is ₹880. What is the rate per year? (a) 16% (b) 7% (c) 8% (d) 9%
21. 21.In how many years will ₹5000 earn ₹1800 simple interest at 12% per year? (a) 2 years (b) 6 years (c) 4 years (d) 3 years
22. 22.The simple interest on ₹3000 for 2 years is ₹120. What is the rate per year? (a) 3% (b) 4% (c) 1% (d) 2%
23. 23.The simple interest on ₹9500 for 2 years is ₹1710. What is the rate per year? (a) 10% (b) 9% (c) 18% (d) 8%
24. 24.₹4000 is invested at 9% per year simple interest. What is the amount after 5 years? (a) ₹1800 (b) ₹6160 (c) ₹5800 (d) ₹4360
25. 25.In how many years will ₹10000 earn ₹600 simple interest at 3% per year? (a) 3 years (b) 4 years (c) 2 years (d) 1 year
26. 26.What is the simple interest on ₹6500 at 10% per year for 5 years? (a) ₹9750 (b) ₹650 (c) ₹3250 (d) ₹3900
27. 27.What is the simple interest on ₹1500 at 3% per year for 4 years? (a) ₹1680 (b) ₹45 (c) ₹225 (d) ₹180
28. 28.In how many years will ₹2000 earn ₹240 simple interest at 4% per year? (a) 2 years (b) 6 years (c) 3 years (d) 4 years
29. 29.In how many years will ₹1500 earn ₹360 simple interest at 12% per year? (a) 1 year (b) 2 years (c) 4 years (d) 3 years
30. 30.What is the simple interest on ₹4000 at 12% per year for 3 years? (a) ₹480 (b) ₹1920 (c) ₹5440 (d) ₹1440
31. 31.In how many years will ₹3000 earn ₹540 simple interest at 6% per year? (a) 6 years (b) 2 years (c) 4 years (d) 3 years
32. 32.The simple interest on ₹3500 for 2 years is ₹350. What is the rate per year? (a) 4% (b) 6% (c) 10% (d) 5%
33. 33.What is the simple interest on ₹7000 at 2% per year for 3 years? (a) ₹7420 (b) ₹140 (c) ₹560 (d) ₹420
34. 34.In how many years will ₹1500 earn ₹405 simple interest at 9% per year? (a) 2 years (b) 4 years (c) 3 years (d) 6 years
35. 35.The simple interest on ₹4000 for 4 years is ₹800. What is the rate per year? (a) 6% (b) 5% (c) 4% (d) 20%
36. 36.What is the simple interest on ₹3000 at 7% per year for 4 years? (a) ₹3840 (b) ₹210 (c) ₹1050 (d) ₹840
37. 37.The simple interest on ₹4000 for 2 years is ₹720. What is the rate per year? (a) 10% (b) 18% (c) 9% (d) 8%
38. 38.In how many years will ₹1500 earn ₹180 simple interest at 6% per year? (a) 1 year (b) 3 years (c) 2 years (d) 4 years
39. 39.What is the simple interest on ₹9500 at 2% per year for 3 years? (a) ₹570 (b) ₹10070 (c) ₹760 (d) ₹190
40. 40.The simple interest on ₹3000 for 3 years is ₹810. What is the rate per year? (a) 9% (b) 27% (c) 8% (d) 10%

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