Simple Interest Worksheet for Maths Olympiad

Maths Olympiad topic 16: Simple interest · Set 748 · 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 6% per year simple interest. What is the amount after 4 years? (a) ₹12350 (b) ₹11780 (c) ₹2280 (d) ₹10070
2. 2.In how many years will ₹1500 earn ₹450 simple interest at 6% per year? (a) 10 years (b) 6 years (c) 5 years (d) 4 years
3. 3.₹8500 is invested at 12% per year simple interest. What is the amount after 4 years? (a) ₹9520 (b) ₹12580 (c) ₹4080 (d) ₹13600
4. 4.In how many years will ₹4000 earn ₹480 simple interest at 6% per year? (a) 3 years (b) 4 years (c) 1 year (d) 2 years
5. 5.What is the simple interest on ₹4000 at 6% per year for 3 years? (a) ₹720 (b) ₹4720 (c) ₹240 (d) ₹960
6. 6.In how many years will ₹6500 earn ₹3575 simple interest at 11% per year? (a) 4 years (b) 6 years (c) 10 years (d) 5 years
7. 7.₹5500 is invested at 11% per year simple interest. What is the amount after 3 years? (a) ₹7920 (b) ₹1815 (c) ₹7315 (d) ₹6105
8. 8.₹1500 is invested at 2% per year simple interest. What is the amount after 5 years? (a) ₹1650 (b) ₹150 (c) ₹1530 (d) ₹1680
9. 9.What is the simple interest on ₹9500 at 10% per year for 2 years? (a) ₹950 (b) ₹11400 (c) ₹1900 (d) ₹2850
10. 10.The simple interest on ₹2000 for 2 years is ₹200. What is the rate per year? (a) 10% (b) 5% (c) 6% (d) 4%
11. 11.The simple interest on ₹6500 for 2 years is ₹1170. What is the rate per year? (a) 10% (b) 9% (c) 8% (d) 18%
12. 12.The simple interest on ₹4000 for 3 years is ₹840. What is the rate per year? (a) 8% (b) 21% (c) 6% (d) 7%
13. 13.In how many years will ₹5500 earn ₹330 simple interest at 3% per year? (a) 2 years (b) 1 year (c) 3 years (d) 4 years
14. 14.What is the simple interest on ₹3000 at 6% per year for 3 years? (a) ₹720 (b) ₹3540 (c) ₹540 (d) ₹180
15. 15.In how many years will ₹2500 earn ₹400 simple interest at 4% per year? (a) 3 years (b) 5 years (c) 4 years (d) 8 years
16. 16.What is the simple interest on ₹3500 at 4% per year for 2 years? (a) ₹3780 (b) ₹420 (c) ₹140 (d) ₹280
17. 17.₹9000 is invested at 12% per year simple interest. What is the amount after 3 years? (a) ₹12240 (b) ₹10080 (c) ₹13320 (d) ₹3240
18. 18.₹10000 is invested at 10% per year simple interest. What is the amount after 2 years? (a) ₹2000 (b) ₹12000 (c) ₹11000 (d) ₹13000
19. 19.The simple interest on ₹2000 for 2 years is ₹280. What is the rate per year? (a) 14% (b) 8% (c) 7% (d) 6%
20. 20.₹1500 is invested at 9% per year simple interest. What is the amount after 5 years? (a) ₹2175 (b) ₹1635 (c) ₹675 (d) ₹2310
21. 21.In how many years will ₹6500 earn ₹650 simple interest at 5% per year? (a) 1 year (b) 2 years (c) 3 years (d) 4 years
22. 22.What is the simple interest on ₹4500 at 8% per year for 3 years? (a) ₹1080 (b) ₹1440 (c) ₹360 (d) ₹5580
23. 23.What is the simple interest on ₹10000 at 5% per year for 4 years? (a) ₹2000 (b) ₹500 (c) ₹2500 (d) ₹12000
24. 24.In how many years will ₹2500 earn ₹450 simple interest at 9% per year? (a) 3 years (b) 2 years (c) 1 year (d) 4 years
25. 25.In how many years will ₹6500 earn ₹1560 simple interest at 12% per year? (a) 3 years (b) 4 years (c) 2 years (d) 1 year
26. 26.What is the simple interest on ₹9000 at 3% per year for 2 years? (a) ₹540 (b) ₹270 (c) ₹810 (d) ₹9540
27. 27.The simple interest on ₹7000 for 2 years is ₹980. What is the rate per year? (a) 6% (b) 14% (c) 7% (d) 8%
28. 28.₹3000 is invested at 5% per year simple interest. What is the amount after 5 years? (a) ₹750 (b) ₹3900 (c) ₹3750 (d) ₹3150
29. 29.What is the simple interest on ₹7000 at 8% per year for 2 years? (a) ₹560 (b) ₹8120 (c) ₹1680 (d) ₹1120
30. 30.₹3500 is invested at 4% per year simple interest. What is the amount after 5 years? (a) ₹4340 (b) ₹700 (c) ₹4200 (d) ₹3640
31. 31.The simple interest on ₹1500 for 2 years is ₹180. What is the rate per year? (a) 12% (b) 7% (c) 6% (d) 5%
32. 32.The simple interest on ₹4000 for 4 years is ₹640. What is the rate per year? (a) 16% (b) 3% (c) 5% (d) 4%
33. 33.In how many years will ₹3000 earn ₹1200 simple interest at 8% per year? (a) 6 years (b) 4 years (c) 10 years (d) 5 years
34. 34.₹6000 is invested at 3% per year simple interest. What is the amount after 5 years? (a) ₹6180 (b) ₹900 (c) ₹7080 (d) ₹6900
35. 35.What is the simple interest on ₹3000 at 3% per year for 4 years? (a) ₹90 (b) ₹450 (c) ₹3360 (d) ₹360
36. 36.What is the simple interest on ₹4500 at 4% per year for 4 years? (a) ₹900 (b) ₹720 (c) ₹5220 (d) ₹180
37. 37.The simple interest on ₹8500 for 3 years is ₹1785. What is the rate per year? (a) 21% (b) 6% (c) 7% (d) 8%
38. 38.What is the simple interest on ₹7500 at 5% per year for 3 years? (a) ₹8625 (b) ₹375 (c) ₹1125 (d) ₹1500
39. 39.What is the simple interest on ₹6000 at 12% per year for 2 years? (a) ₹2160 (b) ₹1440 (c) ₹7440 (d) ₹720
40. 40.What is the simple interest on ₹9000 at 2% per year for 2 years? (a) ₹360 (b) ₹9360 (c) ₹540 (d) ₹180

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