Simple Interest Worksheet for Maths Olympiad

Maths Olympiad topic 16: Simple interest · Set 138 · 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.₹1000 is invested at 12% per year simple interest. What is the amount after 3 years? (a) ₹1480 (b) ₹1360 (c) ₹360 (d) ₹1120
2. 2.What is the simple interest on ₹3500 at 6% per year for 2 years? (a) ₹420 (b) ₹3920 (c) ₹630 (d) ₹210
3. 3.The simple interest on ₹2500 for 4 years is ₹300. What is the rate per year? (a) 3% (b) 12% (c) 4% (d) 2%
4. 4.₹2500 is invested at 8% per year simple interest. What is the amount after 4 years? (a) ₹3300 (b) ₹800 (c) ₹3500 (d) ₹2700
5. 5.What is the simple interest on ₹6000 at 3% per year for 4 years? (a) ₹180 (b) ₹900 (c) ₹6720 (d) ₹720
6. 6.The simple interest on ₹3000 for 4 years is ₹1080. What is the rate per year? (a) 36% (b) 10% (c) 9% (d) 8%
7. 7.What is the simple interest on ₹5000 at 8% per year for 3 years? (a) ₹1600 (b) ₹400 (c) ₹1200 (d) ₹6200
8. 8.In how many years will ₹10000 earn ₹2000 simple interest at 5% per year? (a) 8 years (b) 5 years (c) 4 years (d) 3 years
9. 9.What is the simple interest on ₹6000 at 9% per year for 5 years? (a) ₹3240 (b) ₹2700 (c) ₹540 (d) ₹8700
10. 10.In how many years will ₹5500 earn ₹1320 simple interest at 6% per year? (a) 5 years (b) 3 years (c) 8 years (d) 4 years
11. 11.The simple interest on ₹9000 for 2 years is ₹1980. What is the rate per year? (a) 22% (b) 12% (c) 10% (d) 11%
12. 12.₹5000 is invested at 9% per year simple interest. What is the amount after 4 years? (a) ₹7250 (b) ₹6800 (c) ₹1800 (d) ₹5450
13. 13.₹5000 is invested at 4% per year simple interest. What is the amount after 2 years? (a) ₹5200 (b) ₹5600 (c) ₹5400 (d) ₹400
14. 14.The simple interest on ₹3000 for 5 years is ₹300. What is the rate per year? (a) 1% (b) 2% (c) 3% (d) 10%
15. 15.₹1000 is invested at 11% per year simple interest. What is the amount after 3 years? (a) ₹1330 (b) ₹1110 (c) ₹1440 (d) ₹330
16. 16.The simple interest on ₹2500 for 2 years is ₹100. What is the rate per year? (a) 4% (b) 2% (c) 1% (d) 3%
17. 17.In how many years will ₹4500 earn ₹990 simple interest at 11% per year? (a) 3 years (b) 1 year (c) 2 years (d) 4 years
18. 18.In how many years will ₹3500 earn ₹770 simple interest at 11% per year? (a) 4 years (b) 3 years (c) 1 year (d) 2 years
19. 19.What is the simple interest on ₹6000 at 9% per year for 3 years? (a) ₹1620 (b) ₹7620 (c) ₹2160 (d) ₹540
20. 20.₹2500 is invested at 9% per year simple interest. What is the amount after 4 years? (a) ₹900 (b) ₹2725 (c) ₹3625 (d) ₹3400
21. 21.The simple interest on ₹9500 for 5 years is ₹3325. What is the rate per year? (a) 6% (b) 8% (c) 7% (d) 35%
22. 22.The simple interest on ₹4500 for 2 years is ₹900. What is the rate per year? (a) 9% (b) 20% (c) 11% (d) 10%
23. 23.The simple interest on ₹8500 for 2 years is ₹340. What is the rate per year? (a) 1% (b) 4% (c) 2% (d) 3%
24. 24.In how many years will ₹8500 earn ₹2720 simple interest at 8% per year? (a) 8 years (b) 4 years (c) 3 years (d) 5 years
25. 25.₹9000 is invested at 9% per year simple interest. What is the amount after 4 years? (a) ₹3240 (b) ₹12240 (c) ₹9810 (d) ₹13050
26. 26.The simple interest on ₹2500 for 4 years is ₹700. What is the rate per year? (a) 6% (b) 7% (c) 28% (d) 8%
27. 27.₹10000 is invested at 3% per year simple interest. What is the amount after 2 years? (a) ₹10900 (b) ₹600 (c) ₹10300 (d) ₹10600
28. 28.The simple interest on ₹5500 for 5 years is ₹550. What is the rate per year? (a) 3% (b) 10% (c) 2% (d) 1%
29. 29.What is the simple interest on ₹7500 at 11% per year for 4 years? (a) ₹4125 (b) ₹825 (c) ₹10800 (d) ₹3300
30. 30.₹8500 is invested at 4% per year simple interest. What is the amount after 5 years? (a) ₹10200 (b) ₹10540 (c) ₹8840 (d) ₹1700
31. 31.In how many years will ₹8500 earn ₹1700 simple interest at 4% per year? (a) 6 years (b) 10 years (c) 5 years (d) 4 years
32. 32.In how many years will ₹4500 earn ₹1800 simple interest at 10% per year? (a) 3 years (b) 8 years (c) 5 years (d) 4 years
33. 33.What is the simple interest on ₹9500 at 6% per year for 3 years? (a) ₹11210 (b) ₹570 (c) ₹2280 (d) ₹1710
34. 34.₹7500 is invested at 4% per year simple interest. What is the amount after 3 years? (a) ₹900 (b) ₹7800 (c) ₹8700 (d) ₹8400
35. 35.What is the simple interest on ₹8500 at 5% per year for 4 years? (a) ₹10200 (b) ₹1700 (c) ₹2125 (d) ₹425
36. 36.The simple interest on ₹3500 for 2 years is ₹700. What is the rate per year? (a) 20% (b) 11% (c) 9% (d) 10%
37. 37.The simple interest on ₹9000 for 5 years is ₹900. What is the rate per year? (a) 2% (b) 1% (c) 3% (d) 10%
38. 38.₹1500 is invested at 3% per year simple interest. What is the amount after 5 years? (a) ₹1725 (b) ₹1770 (c) ₹1545 (d) ₹225
39. 39.₹5000 is invested at 7% per year simple interest. What is the amount after 5 years? (a) ₹7100 (b) ₹5350 (c) ₹1750 (d) ₹6750
40. 40.The simple interest on ₹4000 for 5 years is ₹2000. What is the rate per year? (a) 11% (b) 10% (c) 50% (d) 9%

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