Simple Interest Worksheet for Maths Olympiad

Maths Olympiad topic 16: Simple interest · Set 959 · 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 ₹7500 earn ₹1125 simple interest at 3% per year? (a) 4 years (b) 5 years (c) 6 years (d) 10 years
2. 2.In how many years will ₹1500 earn ₹315 simple interest at 7% per year? (a) 6 years (b) 4 years (c) 2 years (d) 3 years
3. 3.The simple interest on ₹9500 for 2 years is ₹1520. What is the rate per year? (a) 16% (b) 7% (c) 8% (d) 9%
4. 4.The simple interest on ₹4500 for 4 years is ₹1260. What is the rate per year? (a) 7% (b) 6% (c) 28% (d) 8%
5. 5.What is the simple interest on ₹4500 at 10% per year for 4 years? (a) ₹2250 (b) ₹1800 (c) ₹6300 (d) ₹450
6. 6.₹7000 is invested at 10% per year simple interest. What is the amount after 2 years? (a) ₹9100 (b) ₹8400 (c) ₹7700 (d) ₹1400
7. 7.The simple interest on ₹3500 for 4 years is ₹840. What is the rate per year? (a) 5% (b) 6% (c) 24% (d) 7%
8. 8.The simple interest on ₹4000 for 3 years is ₹840. What is the rate per year? (a) 8% (b) 21% (c) 7% (d) 6%
9. 9.₹9000 is invested at 6% per year simple interest. What is the amount after 2 years? (a) ₹10620 (b) ₹10080 (c) ₹9540 (d) ₹1080
10. 10.The simple interest on ₹8500 for 4 years is ₹680. What is the rate per year? (a) 1% (b) 3% (c) 2% (d) 8%
11. 11.In how many years will ₹1500 earn ₹150 simple interest at 2% per year? (a) 6 years (b) 4 years (c) 10 years (d) 5 years
12. 12.In how many years will ₹2000 earn ₹360 simple interest at 6% per year? (a) 2 years (b) 3 years (c) 4 years (d) 6 years
13. 13.₹8000 is invested at 2% per year simple interest. What is the amount after 4 years? (a) ₹8800 (b) ₹640 (c) ₹8640 (d) ₹8160
14. 14.What is the simple interest on ₹3000 at 2% per year for 4 years? (a) ₹300 (b) ₹3240 (c) ₹240 (d) ₹60
15. 15.In how many years will ₹6500 earn ₹520 simple interest at 2% per year? (a) 3 years (b) 5 years (c) 4 years (d) 8 years
16. 16.The simple interest on ₹10000 for 5 years is ₹1500. What is the rate per year? (a) 15% (b) 3% (c) 2% (d) 4%
17. 17.In how many years will ₹2500 earn ₹750 simple interest at 10% per year? (a) 2 years (b) 3 years (c) 6 years (d) 4 years
18. 18.What is the simple interest on ₹1000 at 4% per year for 3 years? (a) ₹160 (b) ₹1120 (c) ₹40 (d) ₹120
19. 19.In how many years will ₹1000 earn ₹60 simple interest at 2% per year? (a) 4 years (b) 2 years (c) 3 years (d) 6 years
20. 20.The simple interest on ₹6500 for 5 years is ₹3575. What is the rate per year? (a) 12% (b) 10% (c) 55% (d) 11%
21. 21.In how many years will ₹10000 earn ₹1800 simple interest at 9% per year? (a) 1 year (b) 2 years (c) 4 years (d) 3 years
22. 22.₹3500 is invested at 2% per year simple interest. What is the amount after 2 years? (a) ₹140 (b) ₹3570 (c) ₹3640 (d) ₹3710
23. 23.In how many years will ₹4500 earn ₹675 simple interest at 5% per year? (a) 4 years (b) 2 years (c) 3 years (d) 6 years
24. 24.₹8000 is invested at 12% per year simple interest. What is the amount after 2 years? (a) ₹1920 (b) ₹9920 (c) ₹8960 (d) ₹10880
25. 25.In how many years will ₹8500 earn ₹2550 simple interest at 6% per year? (a) 6 years (b) 10 years (c) 5 years (d) 4 years
26. 26.The simple interest on ₹7000 for 4 years is ₹3080. What is the rate per year? (a) 10% (b) 11% (c) 12% (d) 44%
27. 27.What is the simple interest on ₹1500 at 3% per year for 4 years? (a) ₹180 (b) ₹225 (c) ₹45 (d) ₹1680
28. 28.₹4500 is invested at 2% per year simple interest. What is the amount after 3 years? (a) ₹270 (b) ₹4770 (c) ₹4860 (d) ₹4590
29. 29.What is the simple interest on ₹6500 at 8% per year for 4 years? (a) ₹8580 (b) ₹2080 (c) ₹520 (d) ₹2600
30. 30.What is the simple interest on ₹2000 at 12% per year for 4 years? (a) ₹1200 (b) ₹240 (c) ₹2960 (d) ₹960
31. 31.The simple interest on ₹2000 for 2 years is ₹400. What is the rate per year? (a) 20% (b) 11% (c) 9% (d) 10%
32. 32.₹1500 is invested at 8% per year simple interest. What is the amount after 2 years? (a) ₹1860 (b) ₹1620 (c) ₹1740 (d) ₹240
33. 33.In how many years will ₹7000 earn ₹560 simple interest at 4% per year? (a) 4 years (b) 2 years (c) 3 years (d) 1 year
34. 34.The simple interest on ₹2000 for 5 years is ₹300. What is the rate per year? (a) 4% (b) 15% (c) 2% (d) 3%
35. 35.The simple interest on ₹2500 for 5 years is ₹375. What is the rate per year? (a) 3% (b) 2% (c) 4% (d) 15%
36. 36.In how many years will ₹9000 earn ₹900 simple interest at 2% per year? (a) 4 years (b) 6 years (c) 5 years (d) 10 years
37. 37.₹4500 is invested at 2% per year simple interest. What is the amount after 5 years? (a) ₹4590 (b) ₹5040 (c) ₹4950 (d) ₹450
38. 38.₹1500 is invested at 6% per year simple interest. What is the amount after 5 years? (a) ₹450 (b) ₹1590 (c) ₹2040 (d) ₹1950
39. 39.₹9000 is invested at 9% per year simple interest. What is the amount after 3 years? (a) ₹12240 (b) ₹11430 (c) ₹2430 (d) ₹9810
40. 40.₹8000 is invested at 3% per year simple interest. What is the amount after 5 years? (a) ₹9200 (b) ₹8240 (c) ₹1200 (d) ₹9440

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