Simple Interest Worksheet for Maths Olympiad

Maths Olympiad topic 16: Simple interest · Set 785 · 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 ₹4500 earn ₹540 simple interest at 3% per year? (a) 3 years (b) 8 years (c) 5 years (d) 4 years
2. 2.In how many years will ₹9000 earn ₹2700 simple interest at 6% per year? (a) 6 years (b) 4 years (c) 5 years (d) 10 years
3. 3.In how many years will ₹4000 earn ₹1280 simple interest at 8% per year? (a) 4 years (b) 5 years (c) 3 years (d) 8 years
4. 4.In how many years will ₹9000 earn ₹3240 simple interest at 9% per year? (a) 8 years (b) 4 years (c) 5 years (d) 3 years
5. 5.₹4000 is invested at 10% per year simple interest. What is the amount after 5 years? (a) ₹2000 (b) ₹4400 (c) ₹6000 (d) ₹6400
6. 6.₹7000 is invested at 10% per year simple interest. What is the amount after 2 years? (a) ₹7700 (b) ₹8400 (c) ₹1400 (d) ₹9100
7. 7.In how many years will ₹9000 earn ₹900 simple interest at 5% per year? (a) 3 years (b) 1 year (c) 2 years (d) 4 years
8. 8.What is the simple interest on ₹2500 at 9% per year for 4 years? (a) ₹225 (b) ₹3400 (c) ₹1125 (d) ₹900
9. 9.₹7500 is invested at 5% per year simple interest. What is the amount after 4 years? (a) ₹7875 (b) ₹1500 (c) ₹9000 (d) ₹9375
10. 10.What is the simple interest on ₹3500 at 10% per year for 2 years? (a) ₹4200 (b) ₹350 (c) ₹700 (d) ₹1050
11. 11.What is the simple interest on ₹8000 at 9% per year for 5 years? (a) ₹720 (b) ₹3600 (c) ₹11600 (d) ₹4320
12. 12.The simple interest on ₹6500 for 4 years is ₹2860. What is the rate per year? (a) 12% (b) 44% (c) 11% (d) 10%
13. 13.What is the simple interest on ₹7000 at 7% per year for 3 years? (a) ₹8470 (b) ₹1470 (c) ₹490 (d) ₹1960
14. 14.The simple interest on ₹7000 for 5 years is ₹1050. What is the rate per year? (a) 4% (b) 3% (c) 2% (d) 15%
15. 15.The simple interest on ₹4500 for 5 years is ₹675. What is the rate per year? (a) 2% (b) 3% (c) 4% (d) 15%
16. 16.₹3500 is invested at 10% per year simple interest. What is the amount after 3 years? (a) ₹1050 (b) ₹3850 (c) ₹4900 (d) ₹4550
17. 17.In how many years will ₹3500 earn ₹1540 simple interest at 11% per year? (a) 3 years (b) 5 years (c) 8 years (d) 4 years
18. 18.What is the simple interest on ₹5500 at 12% per year for 5 years? (a) ₹660 (b) ₹3960 (c) ₹3300 (d) ₹8800
19. 19.In how many years will ₹7500 earn ₹2100 simple interest at 7% per year? (a) 4 years (b) 3 years (c) 8 years (d) 5 years
20. 20.The simple interest on ₹1000 for 2 years is ₹120. What is the rate per year? (a) 6% (b) 12% (c) 5% (d) 7%
21. 21.What is the simple interest on ₹9000 at 2% per year for 3 years? (a) ₹9540 (b) ₹180 (c) ₹540 (d) ₹720
22. 22.₹5000 is invested at 10% per year simple interest. What is the amount after 3 years? (a) ₹5500 (b) ₹7000 (c) ₹6500 (d) ₹1500
23. 23.The simple interest on ₹4500 for 5 years is ₹2475. What is the rate per year? (a) 55% (b) 11% (c) 10% (d) 12%
24. 24.The simple interest on ₹8000 for 5 years is ₹800. What is the rate per year? (a) 10% (b) 1% (c) 3% (d) 2%
25. 25.What is the simple interest on ₹3500 at 10% per year for 5 years? (a) ₹5250 (b) ₹1750 (c) ₹350 (d) ₹2100
26. 26.What is the simple interest on ₹7500 at 8% per year for 2 years? (a) ₹600 (b) ₹1800 (c) ₹1200 (d) ₹8700
27. 27.What is the simple interest on ₹9500 at 10% per year for 5 years? (a) ₹14250 (b) ₹4750 (c) ₹950 (d) ₹5700
28. 28.What is the simple interest on ₹1000 at 4% per year for 2 years? (a) ₹40 (b) ₹1080 (c) ₹120 (d) ₹80
29. 29.In how many years will ₹4500 earn ₹1080 simple interest at 12% per year? (a) 3 years (b) 4 years (c) 1 year (d) 2 years
30. 30.₹5000 is invested at 11% per year simple interest. What is the amount after 5 years? (a) ₹8300 (b) ₹5550 (c) ₹2750 (d) ₹7750
31. 31.₹3500 is invested at 8% per year simple interest. What is the amount after 5 years? (a) ₹4900 (b) ₹1400 (c) ₹3780 (d) ₹5180
32. 32.In how many years will ₹8500 earn ₹2040 simple interest at 12% per year? (a) 3 years (b) 1 year (c) 4 years (d) 2 years
33. 33.₹5000 is invested at 3% per year simple interest. What is the amount after 2 years? (a) ₹5300 (b) ₹5450 (c) ₹5150 (d) ₹300
34. 34.What is the simple interest on ₹4000 at 4% per year for 2 years? (a) ₹4320 (b) ₹160 (c) ₹320 (d) ₹480
35. 35.₹7000 is invested at 11% per year simple interest. What is the amount after 4 years? (a) ₹3080 (b) ₹7770 (c) ₹10850 (d) ₹10080
36. 36.The simple interest on ₹10000 for 4 years is ₹2800. What is the rate per year? (a) 6% (b) 8% (c) 28% (d) 7%
37. 37.The simple interest on ₹5500 for 3 years is ₹1320. What is the rate per year? (a) 7% (b) 24% (c) 8% (d) 9%
38. 38.What is the simple interest on ₹4500 at 10% per year for 5 years? (a) ₹450 (b) ₹2250 (c) ₹6750 (d) ₹2700
39. 39.What is the simple interest on ₹10000 at 12% per year for 2 years? (a) ₹2400 (b) ₹1200 (c) ₹12400 (d) ₹3600
40. 40.The simple interest on ₹3000 for 5 years is ₹1500. What is the rate per year? (a) 50% (b) 11% (c) 9% (d) 10%

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