Simple Interest Worksheet for Maths Olympiad

Maths Olympiad topic 16: Simple interest · Set 10 · 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.₹9500 is invested at 8% per year simple interest. What is the amount after 2 years? (a) ₹10260 (b) ₹1520 (c) ₹11780 (d) ₹11020
2. 2.₹8500 is invested at 10% per year simple interest. What is the amount after 4 years? (a) ₹12750 (b) ₹3400 (c) ₹9350 (d) ₹11900
3. 3.The simple interest on ₹7000 for 2 years is ₹840. What is the rate per year? (a) 7% (b) 6% (c) 5% (d) 12%
4. 4.₹2500 is invested at 3% per year simple interest. What is the amount after 3 years? (a) ₹2725 (b) ₹2575 (c) ₹225 (d) ₹2800
5. 5.₹8500 is invested at 3% per year simple interest. What is the amount after 2 years? (a) ₹9010 (b) ₹510 (c) ₹9265 (d) ₹8755
6. 6.What is the simple interest on ₹6500 at 7% per year for 2 years? (a) ₹1365 (b) ₹910 (c) ₹455 (d) ₹7410
7. 7.₹9000 is invested at 4% per year simple interest. What is the amount after 5 years? (a) ₹11160 (b) ₹9360 (c) ₹10800 (d) ₹1800
8. 8.What is the simple interest on ₹8500 at 3% per year for 5 years? (a) ₹1275 (b) ₹1530 (c) ₹9775 (d) ₹255
9. 9.₹3500 is invested at 4% per year simple interest. What is the amount after 2 years? (a) ₹3640 (b) ₹3920 (c) ₹280 (d) ₹3780
10. 10.The simple interest on ₹6500 for 5 years is ₹2925. What is the rate per year? (a) 9% (b) 10% (c) 45% (d) 8%
11. 11.In how many years will ₹9500 earn ₹570 simple interest at 2% per year? (a) 4 years (b) 6 years (c) 3 years (d) 2 years
12. 12.In how many years will ₹1500 earn ₹270 simple interest at 6% per year? (a) 6 years (b) 2 years (c) 3 years (d) 4 years
13. 13.₹6000 is invested at 4% per year simple interest. What is the amount after 4 years? (a) ₹7200 (b) ₹6960 (c) ₹960 (d) ₹6240
14. 14.₹3000 is invested at 7% per year simple interest. What is the amount after 4 years? (a) ₹3210 (b) ₹840 (c) ₹3840 (d) ₹4050
15. 15.In how many years will ₹6500 earn ₹390 simple interest at 2% per year? (a) 6 years (b) 2 years (c) 3 years (d) 4 years
16. 16.In how many years will ₹1500 earn ₹360 simple interest at 6% per year? (a) 8 years (b) 5 years (c) 3 years (d) 4 years
17. 17.What is the simple interest on ₹6000 at 12% per year for 2 years? (a) ₹1440 (b) ₹720 (c) ₹7440 (d) ₹2160
18. 18.In how many years will ₹3000 earn ₹810 simple interest at 9% per year? (a) 3 years (b) 6 years (c) 2 years (d) 4 years
19. 19.What is the simple interest on ₹3000 at 11% per year for 4 years? (a) ₹4320 (b) ₹330 (c) ₹1650 (d) ₹1320
20. 20.What is the simple interest on ₹3500 at 12% per year for 5 years? (a) ₹420 (b) ₹2100 (c) ₹5600 (d) ₹2520
21. 21.In how many years will ₹2500 earn ₹1250 simple interest at 10% per year? (a) 4 years (b) 6 years (c) 10 years (d) 5 years
22. 22.The simple interest on ₹6000 for 4 years is ₹960. What is the rate per year? (a) 16% (b) 3% (c) 4% (d) 5%
23. 23.The simple interest on ₹5500 for 2 years is ₹880. What is the rate per year? (a) 16% (b) 9% (c) 7% (d) 8%
24. 24.What is the simple interest on ₹9000 at 4% per year for 2 years? (a) ₹360 (b) ₹720 (c) ₹1080 (d) ₹9720
25. 25.What is the simple interest on ₹4000 at 6% per year for 3 years? (a) ₹720 (b) ₹4720 (c) ₹240 (d) ₹960
26. 26.What is the simple interest on ₹9500 at 3% per year for 2 years? (a) ₹855 (b) ₹285 (c) ₹570 (d) ₹10070
27. 27.The simple interest on ₹3000 for 4 years is ₹720. What is the rate per year? (a) 5% (b) 24% (c) 6% (d) 7%
28. 28.In how many years will ₹7000 earn ₹1890 simple interest at 9% per year? (a) 2 years (b) 6 years (c) 3 years (d) 4 years
29. 29.What is the simple interest on ₹5500 at 3% per year for 5 years? (a) ₹6325 (b) ₹165 (c) ₹990 (d) ₹825
30. 30.In how many years will ₹8000 earn ₹2160 simple interest at 9% per year? (a) 3 years (b) 2 years (c) 6 years (d) 4 years
31. 31.₹5000 is invested at 7% per year simple interest. What is the amount after 4 years? (a) ₹6750 (b) ₹6400 (c) ₹5350 (d) ₹1400
32. 32.In how many years will ₹8500 earn ₹1785 simple interest at 7% per year? (a) 6 years (b) 3 years (c) 2 years (d) 4 years
33. 33.What is the simple interest on ₹1500 at 4% per year for 2 years? (a) ₹1620 (b) ₹180 (c) ₹120 (d) ₹60
34. 34.₹2500 is invested at 7% per year simple interest. What is the amount after 3 years? (a) ₹3025 (b) ₹3200 (c) ₹2675 (d) ₹525
35. 35.The simple interest on ₹3000 for 2 years is ₹300. What is the rate per year? (a) 10% (b) 4% (c) 6% (d) 5%
36. 36.What is the simple interest on ₹1500 at 10% per year for 5 years? (a) ₹900 (b) ₹2250 (c) ₹750 (d) ₹150
37. 37.₹1500 is invested at 5% per year simple interest. What is the amount after 4 years? (a) ₹300 (b) ₹1875 (c) ₹1575 (d) ₹1800
38. 38.In how many years will ₹7000 earn ₹1400 simple interest at 10% per year? (a) 2 years (b) 1 year (c) 3 years (d) 4 years
39. 39.The simple interest on ₹6000 for 4 years is ₹2640. What is the rate per year? (a) 10% (b) 44% (c) 11% (d) 12%
40. 40.What is the simple interest on ₹2500 at 10% per year for 2 years? (a) ₹3000 (b) ₹750 (c) ₹250 (d) ₹500

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