Simple Interest Worksheet for Maths Olympiad

Maths Olympiad topic 16: Simple interest · Set 485 · 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.The simple interest on ₹6500 for 2 years is ₹1170. What is the rate per year? (a) 18% (b) 8% (c) 9% (d) 10%
2. 2.In how many years will ₹8500 earn ₹850 simple interest at 2% per year? (a) 6 years (b) 4 years (c) 5 years (d) 10 years
3. 3.₹6500 is invested at 4% per year simple interest. What is the amount after 5 years? (a) ₹6760 (b) ₹7800 (c) ₹1300 (d) ₹8060
4. 4.The simple interest on ₹3500 for 2 years is ₹140. What is the rate per year? (a) 4% (b) 2% (c) 1% (d) 3%
5. 5.What is the simple interest on ₹6000 at 11% per year for 3 years? (a) ₹660 (b) ₹1980 (c) ₹7980 (d) ₹2640
6. 6.The simple interest on ₹3000 for 3 years is ₹720. What is the rate per year? (a) 9% (b) 24% (c) 7% (d) 8%
7. 7.What is the simple interest on ₹4000 at 2% per year for 3 years? (a) ₹4240 (b) ₹240 (c) ₹80 (d) ₹320
8. 8.What is the simple interest on ₹8000 at 2% per year for 4 years? (a) ₹160 (b) ₹640 (c) ₹8640 (d) ₹800
9. 9.₹8000 is invested at 4% per year simple interest. What is the amount after 5 years? (a) ₹1600 (b) ₹9920 (c) ₹9600 (d) ₹8320
10. 10.What is the simple interest on ₹10000 at 8% per year for 2 years? (a) ₹11600 (b) ₹1600 (c) ₹800 (d) ₹2400
11. 11.₹1500 is invested at 11% per year simple interest. What is the amount after 2 years? (a) ₹330 (b) ₹1830 (c) ₹1665 (d) ₹1995
12. 12.What is the simple interest on ₹3000 at 3% per year for 4 years? (a) ₹450 (b) ₹90 (c) ₹3360 (d) ₹360
13. 13.What is the simple interest on ₹3500 at 11% per year for 5 years? (a) ₹385 (b) ₹2310 (c) ₹5425 (d) ₹1925
14. 14.In how many years will ₹1000 earn ₹350 simple interest at 7% per year? (a) 5 years (b) 10 years (c) 6 years (d) 4 years
15. 15.The simple interest on ₹5500 for 3 years is ₹990. What is the rate per year? (a) 6% (b) 18% (c) 7% (d) 5%
16. 16.The simple interest on ₹3500 for 2 years is ₹840. What is the rate per year? (a) 24% (b) 13% (c) 11% (d) 12%
17. 17.₹7000 is invested at 5% per year simple interest. What is the amount after 4 years? (a) ₹7350 (b) ₹8750 (c) ₹1400 (d) ₹8400
18. 18.In how many years will ₹9000 earn ₹360 simple interest at 2% per year? (a) 3 years (b) 4 years (c) 1 year (d) 2 years
19. 19.The simple interest on ₹4000 for 2 years is ₹400. What is the rate per year? (a) 10% (b) 6% (c) 4% (d) 5%
20. 20.What is the simple interest on ₹3500 at 7% per year for 4 years? (a) ₹980 (b) ₹4480 (c) ₹1225 (d) ₹245
21. 21.The simple interest on ₹8000 for 4 years is ₹2240. What is the rate per year? (a) 28% (b) 8% (c) 7% (d) 6%
22. 22.The simple interest on ₹8000 for 2 years is ₹640. What is the rate per year? (a) 3% (b) 4% (c) 8% (d) 5%
23. 23.In how many years will ₹3000 earn ₹480 simple interest at 8% per year? (a) 1 year (b) 3 years (c) 4 years (d) 2 years
24. 24.What is the simple interest on ₹8500 at 4% per year for 4 years? (a) ₹9860 (b) ₹1360 (c) ₹340 (d) ₹1700
25. 25.What is the simple interest on ₹8500 at 2% per year for 4 years? (a) ₹170 (b) ₹850 (c) ₹680 (d) ₹9180
26. 26.₹9000 is invested at 7% per year simple interest. What is the amount after 5 years? (a) ₹9630 (b) ₹12780 (c) ₹3150 (d) ₹12150
27. 27.What is the simple interest on ₹9000 at 6% per year for 5 years? (a) ₹2700 (b) ₹540 (c) ₹11700 (d) ₹3240
28. 28.What is the simple interest on ₹5500 at 2% per year for 2 years? (a) ₹330 (b) ₹5720 (c) ₹110 (d) ₹220
29. 29.What is the simple interest on ₹9000 at 9% per year for 5 years? (a) ₹13050 (b) ₹4050 (c) ₹810 (d) ₹4860
30. 30.₹1000 is invested at 12% per year simple interest. What is the amount after 5 years? (a) ₹1600 (b) ₹600 (c) ₹1120 (d) ₹1720
31. 31.What is the simple interest on ₹4000 at 8% per year for 2 years? (a) ₹960 (b) ₹4640 (c) ₹640 (d) ₹320
32. 32.What is the simple interest on ₹4000 at 4% per year for 5 years? (a) ₹960 (b) ₹4800 (c) ₹160 (d) ₹800
33. 33.What is the simple interest on ₹6500 at 3% per year for 5 years? (a) ₹1170 (b) ₹975 (c) ₹7475 (d) ₹195
34. 34.In how many years will ₹4500 earn ₹360 simple interest at 4% per year? (a) 3 years (b) 4 years (c) 2 years (d) 1 year
35. 35.In how many years will ₹1000 earn ₹120 simple interest at 4% per year? (a) 2 years (b) 4 years (c) 6 years (d) 3 years
36. 36.What is the simple interest on ₹6000 at 9% per year for 4 years? (a) ₹2160 (b) ₹2700 (c) ₹540 (d) ₹8160
37. 37.₹6000 is invested at 6% per year simple interest. What is the amount after 2 years? (a) ₹720 (b) ₹6360 (c) ₹6720 (d) ₹7080
38. 38.What is the simple interest on ₹4500 at 8% per year for 2 years? (a) ₹360 (b) ₹1080 (c) ₹5220 (d) ₹720
39. 39.The simple interest on ₹2500 for 3 years is ₹450. What is the rate per year? (a) 6% (b) 7% (c) 18% (d) 5%
40. 40.₹3500 is invested at 12% per year simple interest. What is the amount after 2 years? (a) ₹4760 (b) ₹3920 (c) ₹4340 (d) ₹840

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