Simple Interest Worksheet for Maths Olympiad

Maths Olympiad topic 16: Simple interest · Set 371 · 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.What is the simple interest on ₹9500 at 10% per year for 3 years? (a) ₹3800 (b) ₹2850 (c) ₹12350 (d) ₹950
2. 2.In how many years will ₹8500 earn ₹850 simple interest at 5% per year? (a) 4 years (b) 1 year (c) 3 years (d) 2 years
3. 3.The simple interest on ₹4500 for 2 years is ₹990. What is the rate per year? (a) 12% (b) 10% (c) 22% (d) 11%
4. 4.₹6000 is invested at 3% per year simple interest. What is the amount after 3 years? (a) ₹540 (b) ₹6720 (c) ₹6180 (d) ₹6540
5. 5.What is the simple interest on ₹8500 at 8% per year for 5 years? (a) ₹680 (b) ₹4080 (c) ₹11900 (d) ₹3400
6. 6.The simple interest on ₹6500 for 4 years is ₹2860. What is the rate per year? (a) 12% (b) 44% (c) 11% (d) 10%
7. 7.In how many years will ₹1500 earn ₹225 simple interest at 3% per year? (a) 4 years (b) 10 years (c) 5 years (d) 6 years
8. 8.What is the simple interest on ₹4000 at 6% per year for 2 years? (a) ₹480 (b) ₹240 (c) ₹4480 (d) ₹720
9. 9.In how many years will ₹2500 earn ₹450 simple interest at 6% per year? (a) 2 years (b) 3 years (c) 6 years (d) 4 years
10. 10.In how many years will ₹2500 earn ₹200 simple interest at 2% per year? (a) 8 years (b) 4 years (c) 5 years (d) 3 years
11. 11.What is the simple interest on ₹9500 at 6% per year for 4 years? (a) ₹570 (b) ₹2850 (c) ₹11780 (d) ₹2280
12. 12.The simple interest on ₹5500 for 3 years is ₹990. What is the rate per year? (a) 5% (b) 7% (c) 6% (d) 18%
13. 13.In how many years will ₹8000 earn ₹3200 simple interest at 10% per year? (a) 4 years (b) 8 years (c) 3 years (d) 5 years
14. 14.₹1500 is invested at 2% per year simple interest. What is the amount after 2 years? (a) ₹60 (b) ₹1560 (c) ₹1590 (d) ₹1530
15. 15.₹1000 is invested at 12% per year simple interest. What is the amount after 4 years? (a) ₹1600 (b) ₹1120 (c) ₹480 (d) ₹1480
16. 16.₹3000 is invested at 2% per year simple interest. What is the amount after 3 years? (a) ₹180 (b) ₹3060 (c) ₹3180 (d) ₹3240
17. 17.₹1000 is invested at 3% per year simple interest. What is the amount after 2 years? (a) ₹1030 (b) ₹1060 (c) ₹60 (d) ₹1090
18. 18.What is the simple interest on ₹4000 at 3% per year for 3 years? (a) ₹360 (b) ₹4360 (c) ₹120 (d) ₹480
19. 19.The simple interest on ₹8500 for 4 years is ₹1360. What is the rate per year? (a) 16% (b) 5% (c) 3% (d) 4%
20. 20.₹7500 is invested at 10% per year simple interest. What is the amount after 3 years? (a) ₹2250 (b) ₹8250 (c) ₹10500 (d) ₹9750
21. 21.What is the simple interest on ₹3000 at 12% per year for 3 years? (a) ₹360 (b) ₹1440 (c) ₹4080 (d) ₹1080
22. 22.What is the simple interest on ₹5000 at 8% per year for 5 years? (a) ₹2000 (b) ₹2400 (c) ₹7000 (d) ₹400
23. 23.What is the simple interest on ₹1000 at 11% per year for 2 years? (a) ₹1220 (b) ₹110 (c) ₹330 (d) ₹220
24. 24.In how many years will ₹8500 earn ₹2125 simple interest at 5% per year? (a) 6 years (b) 5 years (c) 4 years (d) 10 years
25. 25.In how many years will ₹7500 earn ₹2025 simple interest at 9% per year? (a) 3 years (b) 6 years (c) 4 years (d) 2 years
26. 26.₹10000 is invested at 8% per year simple interest. What is the amount after 5 years? (a) ₹14800 (b) ₹14000 (c) ₹10800 (d) ₹4000
27. 27.In how many years will ₹9500 earn ₹2280 simple interest at 6% per year? (a) 3 years (b) 8 years (c) 4 years (d) 5 years
28. 28.In how many years will ₹4500 earn ₹1080 simple interest at 12% per year? (a) 1 year (b) 3 years (c) 4 years (d) 2 years
29. 29.₹6000 is invested at 12% per year simple interest. What is the amount after 3 years? (a) ₹2160 (b) ₹6720 (c) ₹8160 (d) ₹8880
30. 30.What is the simple interest on ₹7500 at 4% per year for 4 years? (a) ₹1200 (b) ₹8700 (c) ₹1500 (d) ₹300
31. 31.The simple interest on ₹3500 for 5 years is ₹1925. What is the rate per year? (a) 55% (b) 12% (c) 10% (d) 11%
32. 32.In how many years will ₹6000 earn ₹1800 simple interest at 10% per year? (a) 4 years (b) 2 years (c) 3 years (d) 6 years
33. 33.₹8500 is invested at 2% per year simple interest. What is the amount after 2 years? (a) ₹8670 (b) ₹340 (c) ₹8840 (d) ₹9010
34. 34.₹10000 is invested at 7% per year simple interest. What is the amount after 4 years? (a) ₹2800 (b) ₹10700 (c) ₹13500 (d) ₹12800
35. 35.The simple interest on ₹2500 for 3 years is ₹300. What is the rate per year? (a) 5% (b) 12% (c) 3% (d) 4%
36. 36.₹2000 is invested at 2% per year simple interest. What is the amount after 3 years? (a) ₹2160 (b) ₹2040 (c) ₹120 (d) ₹2120
37. 37.In how many years will ₹4000 earn ₹320 simple interest at 2% per year? (a) 3 years (b) 4 years (c) 5 years (d) 8 years
38. 38.₹7000 is invested at 4% per year simple interest. What is the amount after 3 years? (a) ₹7840 (b) ₹7280 (c) ₹8120 (d) ₹840
39. 39.₹4500 is invested at 3% per year simple interest. What is the amount after 5 years? (a) ₹5175 (b) ₹5310 (c) ₹4635 (d) ₹675
40. 40.In how many years will ₹7500 earn ₹4500 simple interest at 12% per year? (a) 6 years (b) 10 years (c) 4 years (d) 5 years

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