Simple Interest Worksheet for Maths Olympiad

Maths Olympiad topic 16: Simple interest · Set 509 · 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 ₹10000 at 2% per year for 4 years? (a) ₹200 (b) ₹800 (c) ₹10800 (d) ₹1000
2. 2.In how many years will ₹1000 earn ₹80 simple interest at 4% per year? (a) 3 years (b) 2 years (c) 4 years (d) 1 year
3. 3.The simple interest on ₹4000 for 5 years is ₹800. What is the rate per year? (a) 3% (b) 4% (c) 20% (d) 5%
4. 4.In how many years will ₹9000 earn ₹3600 simple interest at 10% per year? (a) 5 years (b) 8 years (c) 4 years (d) 3 years
5. 5.The simple interest on ₹4500 for 3 years is ₹1080. What is the rate per year? (a) 24% (b) 7% (c) 8% (d) 9%
6. 6.In how many years will ₹9000 earn ₹720 simple interest at 2% per year? (a) 8 years (b) 3 years (c) 5 years (d) 4 years
7. 7.The simple interest on ₹8000 for 3 years is ₹2160. What is the rate per year? (a) 27% (b) 8% (c) 9% (d) 10%
8. 8.₹2500 is invested at 5% per year simple interest. What is the amount after 2 years? (a) ₹2875 (b) ₹250 (c) ₹2750 (d) ₹2625
9. 9.What is the simple interest on ₹7500 at 4% per year for 2 years? (a) ₹600 (b) ₹900 (c) ₹300 (d) ₹8100
10. 10.The simple interest on ₹6000 for 5 years is ₹2700. What is the rate per year? (a) 8% (b) 45% (c) 10% (d) 9%
11. 11.What is the simple interest on ₹5000 at 7% per year for 2 years? (a) ₹1050 (b) ₹700 (c) ₹5700 (d) ₹350
12. 12.In how many years will ₹4000 earn ₹600 simple interest at 3% per year? (a) 4 years (b) 5 years (c) 10 years (d) 6 years
13. 13.₹10000 is invested at 10% per year simple interest. What is the amount after 4 years? (a) ₹14000 (b) ₹4000 (c) ₹11000 (d) ₹15000
14. 14.The simple interest on ₹10000 for 3 years is ₹900. What is the rate per year? (a) 4% (b) 2% (c) 3% (d) 9%
15. 15.In how many years will ₹5500 earn ₹2420 simple interest at 11% per year? (a) 3 years (b) 5 years (c) 8 years (d) 4 years
16. 16.What is the simple interest on ₹2000 at 2% per year for 3 years? (a) ₹120 (b) ₹40 (c) ₹160 (d) ₹2120
17. 17.In how many years will ₹3500 earn ₹2100 simple interest at 12% per year? (a) 4 years (b) 6 years (c) 10 years (d) 5 years
18. 18.The simple interest on ₹2000 for 2 years is ₹120. What is the rate per year? (a) 3% (b) 4% (c) 6% (d) 2%
19. 19.In how many years will ₹9000 earn ₹3960 simple interest at 11% per year? (a) 3 years (b) 8 years (c) 4 years (d) 5 years
20. 20.What is the simple interest on ₹9000 at 10% per year for 2 years? (a) ₹2700 (b) ₹10800 (c) ₹1800 (d) ₹900
21. 21.What is the simple interest on ₹9500 at 4% per year for 4 years? (a) ₹11020 (b) ₹380 (c) ₹1520 (d) ₹1900
22. 22.₹1000 is invested at 9% per year simple interest. What is the amount after 4 years? (a) ₹1360 (b) ₹1450 (c) ₹1090 (d) ₹360
23. 23.What is the simple interest on ₹6000 at 9% per year for 2 years? (a) ₹1620 (b) ₹7080 (c) ₹1080 (d) ₹540
24. 24.The simple interest on ₹9000 for 2 years is ₹1980. What is the rate per year? (a) 12% (b) 11% (c) 22% (d) 10%
25. 25.The simple interest on ₹3000 for 2 years is ₹300. What is the rate per year? (a) 10% (b) 5% (c) 6% (d) 4%
26. 26.The simple interest on ₹4500 for 2 years is ₹360. What is the rate per year? (a) 5% (b) 8% (c) 3% (d) 4%
27. 27.What is the simple interest on ₹8000 at 3% per year for 2 years? (a) ₹8480 (b) ₹720 (c) ₹480 (d) ₹240
28. 28.What is the simple interest on ₹6000 at 3% per year for 3 years? (a) ₹540 (b) ₹180 (c) ₹720 (d) ₹6540
29. 29.The simple interest on ₹5000 for 3 years is ₹1650. What is the rate per year? (a) 33% (b) 10% (c) 11% (d) 12%
30. 30.In how many years will ₹1500 earn ₹825 simple interest at 11% per year? (a) 6 years (b) 4 years (c) 10 years (d) 5 years
31. 31.In how many years will ₹9000 earn ₹2520 simple interest at 7% per year? (a) 8 years (b) 4 years (c) 3 years (d) 5 years
32. 32.What is the simple interest on ₹5500 at 7% per year for 3 years? (a) ₹1540 (b) ₹385 (c) ₹1155 (d) ₹6655
33. 33.₹4000 is invested at 11% per year simple interest. What is the amount after 3 years? (a) ₹4440 (b) ₹5760 (c) ₹5320 (d) ₹1320
34. 34.The simple interest on ₹5000 for 2 years is ₹700. What is the rate per year? (a) 7% (b) 14% (c) 8% (d) 6%
35. 35.₹2500 is invested at 11% per year simple interest. What is the amount after 4 years? (a) ₹3875 (b) ₹2775 (c) ₹1100 (d) ₹3600
36. 36.₹6500 is invested at 6% per year simple interest. What is the amount after 2 years? (a) ₹7670 (b) ₹780 (c) ₹7280 (d) ₹6890
37. 37.₹1500 is invested at 4% per year simple interest. What is the amount after 2 years? (a) ₹1620 (b) ₹1680 (c) ₹1560 (d) ₹120
38. 38.₹8000 is invested at 3% per year simple interest. What is the amount after 5 years? (a) ₹8240 (b) ₹9440 (c) ₹9200 (d) ₹1200
39. 39.What is the simple interest on ₹8500 at 3% per year for 5 years? (a) ₹1275 (b) ₹9775 (c) ₹255 (d) ₹1530
40. 40.In how many years will ₹4000 earn ₹1200 simple interest at 6% per year? (a) 10 years (b) 4 years (c) 5 years (d) 6 years

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