Simple Interest Worksheet for Maths Olympiad

Maths Olympiad topic 16: Simple interest · Set 232 · 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 ₹8000 at 5% per year for 4 years? (a) ₹9600 (b) ₹1600 (c) ₹2000 (d) ₹400
2. 2.The simple interest on ₹5500 for 2 years is ₹330. What is the rate per year? (a) 6% (b) 2% (c) 4% (d) 3%
3. 3.In how many years will ₹10000 earn ₹1400 simple interest at 7% per year? (a) 4 years (b) 3 years (c) 1 year (d) 2 years
4. 4.In how many years will ₹1500 earn ₹90 simple interest at 3% per year? (a) 4 years (b) 3 years (c) 2 years (d) 1 year
5. 5.In how many years will ₹8000 earn ₹480 simple interest at 2% per year? (a) 2 years (b) 6 years (c) 4 years (d) 3 years
6. 6.₹6000 is invested at 4% per year simple interest. What is the amount after 2 years? (a) ₹6480 (b) ₹6240 (c) ₹480 (d) ₹6720
7. 7.What is the simple interest on ₹8000 at 5% per year for 5 years? (a) ₹2400 (b) ₹400 (c) ₹10000 (d) ₹2000
8. 8.In how many years will ₹4000 earn ₹1600 simple interest at 10% per year? (a) 5 years (b) 3 years (c) 8 years (d) 4 years
9. 9.₹5500 is invested at 3% per year simple interest. What is the amount after 2 years? (a) ₹330 (b) ₹5665 (c) ₹5995 (d) ₹5830
10. 10.In how many years will ₹5500 earn ₹660 simple interest at 4% per year? (a) 6 years (b) 4 years (c) 2 years (d) 3 years
11. 11.₹9000 is invested at 5% per year simple interest. What is the amount after 5 years? (a) ₹11700 (b) ₹9450 (c) ₹11250 (d) ₹2250
12. 12.What is the simple interest on ₹1000 at 11% per year for 2 years? (a) ₹110 (b) ₹330 (c) ₹220 (d) ₹1220
13. 13.In how many years will ₹4500 earn ₹900 simple interest at 5% per year? (a) 3 years (b) 5 years (c) 4 years (d) 8 years
14. 14.₹7500 is invested at 9% per year simple interest. What is the amount after 5 years? (a) ₹11550 (b) ₹10875 (c) ₹8175 (d) ₹3375
15. 15.₹1000 is invested at 9% per year simple interest. What is the amount after 4 years? (a) ₹1450 (b) ₹360 (c) ₹1090 (d) ₹1360
16. 16.What is the simple interest on ₹7000 at 6% per year for 2 years? (a) ₹840 (b) ₹7840 (c) ₹420 (d) ₹1260
17. 17.The simple interest on ₹2500 for 2 years is ₹450. What is the rate per year? (a) 9% (b) 8% (c) 18% (d) 10%
18. 18.What is the simple interest on ₹10000 at 4% per year for 2 years? (a) ₹800 (b) ₹1200 (c) ₹10800 (d) ₹400
19. 19.What is the simple interest on ₹2500 at 8% per year for 5 years? (a) ₹200 (b) ₹1000 (c) ₹3500 (d) ₹1200
20. 20.The simple interest on ₹9500 for 2 years is ₹1900. What is the rate per year? (a) 11% (b) 9% (c) 10% (d) 20%
21. 21.The simple interest on ₹8500 for 4 years is ₹680. What is the rate per year? (a) 1% (b) 3% (c) 8% (d) 2%
22. 22.What is the simple interest on ₹4500 at 12% per year for 2 years? (a) ₹1620 (b) ₹540 (c) ₹1080 (d) ₹5580
23. 23.The simple interest on ₹2000 for 2 years is ₹400. What is the rate per year? (a) 11% (b) 9% (c) 10% (d) 20%
24. 24.₹2500 is invested at 11% per year simple interest. What is the amount after 4 years? (a) ₹3600 (b) ₹1100 (c) ₹2775 (d) ₹3875
25. 25.₹5000 is invested at 12% per year simple interest. What is the amount after 4 years? (a) ₹2400 (b) ₹5600 (c) ₹8000 (d) ₹7400
26. 26.In how many years will ₹8000 earn ₹960 simple interest at 3% per year? (a) 8 years (b) 4 years (c) 3 years (d) 5 years
27. 27.The simple interest on ₹3000 for 4 years is ₹600. What is the rate per year? (a) 20% (b) 6% (c) 4% (d) 5%
28. 28.The simple interest on ₹5500 for 3 years is ₹1650. What is the rate per year? (a) 11% (b) 9% (c) 10% (d) 30%
29. 29.In how many years will ₹1000 earn ₹480 simple interest at 12% per year? (a) 4 years (b) 8 years (c) 3 years (d) 5 years
30. 30.₹10000 is invested at 2% per year simple interest. What is the amount after 4 years? (a) ₹800 (b) ₹10200 (c) ₹10800 (d) ₹11000
31. 31.In how many years will ₹8000 earn ₹1280 simple interest at 8% per year? (a) 3 years (b) 1 year (c) 2 years (d) 4 years
32. 32.In how many years will ₹5500 earn ₹440 simple interest at 4% per year? (a) 1 year (b) 2 years (c) 3 years (d) 4 years
33. 33.₹7500 is invested at 7% per year simple interest. What is the amount after 3 years? (a) ₹1575 (b) ₹9600 (c) ₹8025 (d) ₹9075
34. 34.In how many years will ₹10000 earn ₹3200 simple interest at 8% per year? (a) 8 years (b) 3 years (c) 5 years (d) 4 years
35. 35.What is the simple interest on ₹2000 at 8% per year for 3 years? (a) ₹640 (b) ₹160 (c) ₹480 (d) ₹2480
36. 36.What is the simple interest on ₹8000 at 10% per year for 4 years? (a) ₹11200 (b) ₹800 (c) ₹3200 (d) ₹4000
37. 37.The simple interest on ₹1500 for 3 years is ₹315. What is the rate per year? (a) 8% (b) 21% (c) 7% (d) 6%
38. 38.₹5000 is invested at 6% per year simple interest. What is the amount after 2 years? (a) ₹5900 (b) ₹5600 (c) ₹5300 (d) ₹600
39. 39.What is the simple interest on ₹7000 at 5% per year for 4 years? (a) ₹350 (b) ₹1400 (c) ₹8400 (d) ₹1750
40. 40.What is the simple interest on ₹1500 at 12% per year for 4 years? (a) ₹900 (b) ₹2220 (c) ₹720 (d) ₹180

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