Simple Interest Worksheet for Maths Olympiad

Maths Olympiad topic 16: Simple interest · Set 181 · 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 ₹3500 at 8% per year for 3 years? (a) ₹4340 (b) ₹1120 (c) ₹280 (d) ₹840
2. 2.₹1000 is invested at 2% per year simple interest. What is the amount after 3 years? (a) ₹60 (b) ₹1080 (c) ₹1060 (d) ₹1020
3. 3.The simple interest on ₹1500 for 3 years is ₹405. What is the rate per year? (a) 10% (b) 8% (c) 9% (d) 27%
4. 4.The simple interest on ₹1000 for 4 years is ₹440. What is the rate per year? (a) 44% (b) 10% (c) 12% (d) 11%
5. 5.In how many years will ₹9500 earn ₹380 simple interest at 2% per year? (a) 4 years (b) 3 years (c) 2 years (d) 1 year
6. 6.The simple interest on ₹10000 for 5 years is ₹2000. What is the rate per year? (a) 5% (b) 20% (c) 3% (d) 4%
7. 7.₹4500 is invested at 12% per year simple interest. What is the amount after 5 years? (a) ₹5040 (b) ₹7200 (c) ₹7740 (d) ₹2700
8. 8.₹1000 is invested at 3% per year simple interest. What is the amount after 4 years? (a) ₹120 (b) ₹1150 (c) ₹1120 (d) ₹1030
9. 9.In how many years will ₹7500 earn ₹3000 simple interest at 10% per year? (a) 4 years (b) 3 years (c) 8 years (d) 5 years
10. 10.₹3500 is invested at 12% per year simple interest. What is the amount after 4 years? (a) ₹3920 (b) ₹5600 (c) ₹5180 (d) ₹1680
11. 11.What is the simple interest on ₹4500 at 2% per year for 5 years? (a) ₹90 (b) ₹540 (c) ₹450 (d) ₹4950
12. 12.₹6000 is invested at 3% per year simple interest. What is the amount after 5 years? (a) ₹900 (b) ₹6180 (c) ₹7080 (d) ₹6900
13. 13.₹4000 is invested at 12% per year simple interest. What is the amount after 4 years? (a) ₹1920 (b) ₹6400 (c) ₹5920 (d) ₹4480
14. 14.₹3000 is invested at 8% per year simple interest. What is the amount after 3 years? (a) ₹720 (b) ₹3720 (c) ₹3960 (d) ₹3240
15. 15.The simple interest on ₹2500 for 3 years is ₹300. What is the rate per year? (a) 5% (b) 12% (c) 3% (d) 4%
16. 16.The simple interest on ₹7000 for 3 years is ₹1050. What is the rate per year? (a) 5% (b) 6% (c) 4% (d) 15%
17. 17.In how many years will ₹1500 earn ₹330 simple interest at 11% per year? (a) 3 years (b) 4 years (c) 2 years (d) 1 year
18. 18.What is the simple interest on ₹9000 at 5% per year for 2 years? (a) ₹450 (b) ₹900 (c) ₹9900 (d) ₹1350
19. 19.In how many years will ₹4000 earn ₹800 simple interest at 5% per year? (a) 3 years (b) 8 years (c) 5 years (d) 4 years
20. 20.In how many years will ₹4000 earn ₹1000 simple interest at 5% per year? (a) 5 years (b) 4 years (c) 6 years (d) 10 years
21. 21.₹5000 is invested at 5% per year simple interest. What is the amount after 2 years? (a) ₹5250 (b) ₹5750 (c) ₹5500 (d) ₹500
22. 22.The simple interest on ₹6500 for 5 years is ₹2275. What is the rate per year? (a) 8% (b) 6% (c) 35% (d) 7%
23. 23.What is the simple interest on ₹3000 at 3% per year for 3 years? (a) ₹3270 (b) ₹360 (c) ₹270 (d) ₹90
24. 24.In how many years will ₹3000 earn ₹1650 simple interest at 11% per year? (a) 6 years (b) 5 years (c) 4 years (d) 10 years
25. 25.₹2000 is invested at 6% per year simple interest. What is the amount after 3 years? (a) ₹2360 (b) ₹360 (c) ₹2480 (d) ₹2120
26. 26.The simple interest on ₹4500 for 2 years is ₹540. What is the rate per year? (a) 6% (b) 7% (c) 12% (d) 5%
27. 27.In how many years will ₹3500 earn ₹280 simple interest at 4% per year? (a) 2 years (b) 3 years (c) 4 years (d) 1 year
28. 28.The simple interest on ₹7000 for 3 years is ₹1470. What is the rate per year? (a) 8% (b) 7% (c) 21% (d) 6%
29. 29.In how many years will ₹9500 earn ₹3325 simple interest at 7% per year? (a) 10 years (b) 6 years (c) 4 years (d) 5 years
30. 30.The simple interest on ₹6000 for 4 years is ₹720. What is the rate per year? (a) 2% (b) 3% (c) 4% (d) 12%
31. 31.In how many years will ₹5500 earn ₹3300 simple interest at 12% per year? (a) 5 years (b) 4 years (c) 6 years (d) 10 years
32. 32.₹3500 is invested at 10% per year simple interest. What is the amount after 4 years? (a) ₹4900 (b) ₹3850 (c) ₹1400 (d) ₹5250
33. 33.In how many years will ₹6500 earn ₹1560 simple interest at 6% per year? (a) 5 years (b) 8 years (c) 3 years (d) 4 years
34. 34.In how many years will ₹6000 earn ₹720 simple interest at 3% per year? (a) 3 years (b) 8 years (c) 5 years (d) 4 years
35. 35.In how many years will ₹4500 earn ₹675 simple interest at 3% per year? (a) 10 years (b) 6 years (c) 4 years (d) 5 years
36. 36.₹7000 is invested at 7% per year simple interest. What is the amount after 3 years? (a) ₹8470 (b) ₹1470 (c) ₹7490 (d) ₹8960
37. 37.The simple interest on ₹1500 for 4 years is ₹360. What is the rate per year? (a) 6% (b) 24% (c) 7% (d) 5%
38. 38.₹8000 is invested at 7% per year simple interest. What is the amount after 5 years? (a) ₹8560 (b) ₹11360 (c) ₹2800 (d) ₹10800
39. 39.₹5000 is invested at 7% per year simple interest. What is the amount after 2 years? (a) ₹6050 (b) ₹5350 (c) ₹700 (d) ₹5700
40. 40.What is the simple interest on ₹5000 at 9% per year for 2 years? (a) ₹5900 (b) ₹450 (c) ₹900 (d) ₹1350

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