Simple Interest Worksheet for Maths Olympiad

Maths Olympiad topic 16: Simple interest · Set 800 · 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.In how many years will ₹2500 earn ₹400 simple interest at 8% per year? (a) 4 years (b) 2 years (c) 1 year (d) 3 years
2. 2.What is the simple interest on ₹2000 at 9% per year for 5 years? (a) ₹180 (b) ₹900 (c) ₹2900 (d) ₹1080
3. 3.What is the simple interest on ₹3000 at 3% per year for 3 years? (a) ₹90 (b) ₹360 (c) ₹270 (d) ₹3270
4. 4.In how many years will ₹4500 earn ₹450 simple interest at 5% per year? (a) 3 years (b) 1 year (c) 2 years (d) 4 years
5. 5.In how many years will ₹4000 earn ₹720 simple interest at 9% per year? (a) 4 years (b) 2 years (c) 3 years (d) 1 year
6. 6.The simple interest on ₹2000 for 4 years is ₹160. What is the rate per year? (a) 3% (b) 1% (c) 2% (d) 8%
7. 7.In how many years will ₹7000 earn ₹2520 simple interest at 9% per year? (a) 5 years (b) 4 years (c) 8 years (d) 3 years
8. 8.₹7500 is invested at 3% per year simple interest. What is the amount after 4 years? (a) ₹900 (b) ₹8400 (c) ₹8625 (d) ₹7725
9. 9.₹3500 is invested at 2% per year simple interest. What is the amount after 5 years? (a) ₹3570 (b) ₹350 (c) ₹3850 (d) ₹3920
10. 10.₹3500 is invested at 8% per year simple interest. What is the amount after 4 years? (a) ₹3780 (b) ₹4900 (c) ₹4620 (d) ₹1120
11. 11.What is the simple interest on ₹8000 at 9% per year for 5 years? (a) ₹11600 (b) ₹4320 (c) ₹720 (d) ₹3600
12. 12.In how many years will ₹3500 earn ₹560 simple interest at 4% per year? (a) 5 years (b) 4 years (c) 8 years (d) 3 years
13. 13.In how many years will ₹3500 earn ₹700 simple interest at 5% per year? (a) 3 years (b) 8 years (c) 4 years (d) 5 years
14. 14.The simple interest on ₹8500 for 2 years is ₹340. What is the rate per year? (a) 3% (b) 1% (c) 4% (d) 2%
15. 15.What is the simple interest on ₹5500 at 4% per year for 5 years? (a) ₹1320 (b) ₹6600 (c) ₹220 (d) ₹1100
16. 16.The simple interest on ₹6500 for 3 years is ₹975. What is the rate per year? (a) 4% (b) 5% (c) 15% (d) 6%
17. 17.The simple interest on ₹8000 for 4 years is ₹1920. What is the rate per year? (a) 7% (b) 5% (c) 24% (d) 6%
18. 18.In how many years will ₹5000 earn ₹1400 simple interest at 7% per year? (a) 8 years (b) 5 years (c) 3 years (d) 4 years
19. 19.₹8000 is invested at 4% per year simple interest. What is the amount after 4 years? (a) ₹1280 (b) ₹9280 (c) ₹9600 (d) ₹8320
20. 20.₹4000 is invested at 8% per year simple interest. What is the amount after 5 years? (a) ₹4320 (b) ₹1600 (c) ₹5600 (d) ₹5920
21. 21.The simple interest on ₹8500 for 3 years is ₹2550. What is the rate per year? (a) 30% (b) 9% (c) 10% (d) 11%
22. 22.What is the simple interest on ₹8500 at 5% per year for 2 years? (a) ₹1275 (b) ₹425 (c) ₹9350 (d) ₹850
23. 23.What is the simple interest on ₹3500 at 12% per year for 5 years? (a) ₹2520 (b) ₹5600 (c) ₹420 (d) ₹2100
24. 24.The simple interest on ₹4500 for 2 years is ₹450. What is the rate per year? (a) 4% (b) 6% (c) 5% (d) 10%
25. 25.₹7000 is invested at 11% per year simple interest. What is the amount after 3 years? (a) ₹2310 (b) ₹7770 (c) ₹10080 (d) ₹9310
26. 26.The simple interest on ₹8500 for 4 years is ₹4080. What is the rate per year? (a) 12% (b) 48% (c) 13% (d) 11%
27. 27.₹1000 is invested at 3% per year simple interest. What is the amount after 4 years? (a) ₹1120 (b) ₹1030 (c) ₹1150 (d) ₹120
28. 28.In how many years will ₹3000 earn ₹600 simple interest at 4% per year? (a) 10 years (b) 5 years (c) 6 years (d) 4 years
29. 29.The simple interest on ₹9500 for 2 years is ₹1900. What is the rate per year? (a) 11% (b) 10% (c) 9% (d) 20%
30. 30.The simple interest on ₹4000 for 3 years is ₹360. What is the rate per year? (a) 4% (b) 3% (c) 9% (d) 2%
31. 31.In how many years will ₹5500 earn ₹1760 simple interest at 8% per year? (a) 5 years (b) 8 years (c) 4 years (d) 3 years
32. 32.₹8000 is invested at 8% per year simple interest. What is the amount after 3 years? (a) ₹9920 (b) ₹10560 (c) ₹8640 (d) ₹1920
33. 33.The simple interest on ₹3500 for 2 years is ₹770. What is the rate per year? (a) 22% (b) 11% (c) 10% (d) 12%
34. 34.The simple interest on ₹4500 for 3 years is ₹1485. What is the rate per year? (a) 12% (b) 33% (c) 11% (d) 10%
35. 35.In how many years will ₹6500 earn ₹260 simple interest at 2% per year? (a) 4 years (b) 1 year (c) 2 years (d) 3 years
36. 36.In how many years will ₹8000 earn ₹2880 simple interest at 9% per year? (a) 8 years (b) 3 years (c) 5 years (d) 4 years
37. 37.In how many years will ₹1000 earn ₹80 simple interest at 2% per year? (a) 5 years (b) 8 years (c) 3 years (d) 4 years
38. 38.In how many years will ₹10000 earn ₹1200 simple interest at 6% per year? (a) 4 years (b) 3 years (c) 1 year (d) 2 years
39. 39.What is the simple interest on ₹9000 at 10% per year for 2 years? (a) ₹2700 (b) ₹900 (c) ₹1800 (d) ₹10800
40. 40.What is the simple interest on ₹1500 at 8% per year for 2 years? (a) ₹360 (b) ₹240 (c) ₹120 (d) ₹1740

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