Simple Interest Worksheet for Maths Olympiad

Maths Olympiad topic 16: Simple interest · Set 451 · 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 ₹3000 at 2% per year for 5 years? (a) ₹3300 (b) ₹360 (c) ₹60 (d) ₹300
2. 2.The simple interest on ₹7500 for 2 years is ₹300. What is the rate per year? (a) 3% (b) 1% (c) 2% (d) 4%
3. 3.₹5000 is invested at 3% per year simple interest. What is the amount after 3 years? (a) ₹5150 (b) ₹5600 (c) ₹5450 (d) ₹450
4. 4.In how many years will ₹5000 earn ₹2500 simple interest at 10% per year? (a) 10 years (b) 6 years (c) 4 years (d) 5 years
5. 5.The simple interest on ₹4000 for 5 years is ₹2000. What is the rate per year? (a) 50% (b) 11% (c) 10% (d) 9%
6. 6.The simple interest on ₹2500 for 4 years is ₹900. What is the rate per year? (a) 8% (b) 9% (c) 10% (d) 36%
7. 7.₹3500 is invested at 9% per year simple interest. What is the amount after 5 years? (a) ₹3815 (b) ₹1575 (c) ₹5390 (d) ₹5075
8. 8.What is the simple interest on ₹4500 at 6% per year for 3 years? (a) ₹1080 (b) ₹810 (c) ₹5310 (d) ₹270
9. 9.In how many years will ₹1000 earn ₹400 simple interest at 10% per year? (a) 4 years (b) 3 years (c) 5 years (d) 8 years
10. 10.₹1500 is invested at 7% per year simple interest. What is the amount after 4 years? (a) ₹1605 (b) ₹420 (c) ₹2025 (d) ₹1920
11. 11.What is the simple interest on ₹5000 at 6% per year for 5 years? (a) ₹1500 (b) ₹6500 (c) ₹1800 (d) ₹300
12. 12.₹1000 is invested at 10% per year simple interest. What is the amount after 2 years? (a) ₹200 (b) ₹1100 (c) ₹1200 (d) ₹1300
13. 13.The simple interest on ₹2500 for 4 years is ₹200. What is the rate per year? (a) 3% (b) 8% (c) 2% (d) 1%
14. 14.What is the simple interest on ₹3000 at 2% per year for 4 years? (a) ₹60 (b) ₹300 (c) ₹240 (d) ₹3240
15. 15.₹9000 is invested at 5% per year simple interest. What is the amount after 2 years? (a) ₹900 (b) ₹10350 (c) ₹9450 (d) ₹9900
16. 16.₹8500 is invested at 7% per year simple interest. What is the amount after 5 years? (a) ₹12070 (b) ₹9095 (c) ₹11475 (d) ₹2975
17. 17.In how many years will ₹1000 earn ₹90 simple interest at 3% per year? (a) 6 years (b) 2 years (c) 4 years (d) 3 years
18. 18.₹10000 is invested at 12% per year simple interest. What is the amount after 4 years? (a) ₹16000 (b) ₹11200 (c) ₹14800 (d) ₹4800
19. 19.In how many years will ₹9500 earn ₹760 simple interest at 4% per year? (a) 3 years (b) 2 years (c) 4 years (d) 1 year
20. 20.In how many years will ₹2500 earn ₹750 simple interest at 6% per year? (a) 5 years (b) 6 years (c) 10 years (d) 4 years
21. 21.₹7500 is invested at 5% per year simple interest. What is the amount after 3 years? (a) ₹9000 (b) ₹7875 (c) ₹1125 (d) ₹8625
22. 22.The simple interest on ₹5500 for 4 years is ₹2640. What is the rate per year? (a) 12% (b) 48% (c) 13% (d) 11%
23. 23.The simple interest on ₹5000 for 2 years is ₹1000. What is the rate per year? (a) 10% (b) 20% (c) 9% (d) 11%
24. 24.₹2000 is invested at 9% per year simple interest. What is the amount after 2 years? (a) ₹2180 (b) ₹2540 (c) ₹360 (d) ₹2360
25. 25.The simple interest on ₹4000 for 2 years is ₹400. What is the rate per year? (a) 10% (b) 5% (c) 6% (d) 4%
26. 26.₹7000 is invested at 6% per year simple interest. What is the amount after 3 years? (a) ₹7420 (b) ₹8680 (c) ₹1260 (d) ₹8260
27. 27.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
28. 28.The simple interest on ₹5000 for 5 years is ₹1750. What is the rate per year? (a) 7% (b) 6% (c) 8% (d) 35%
29. 29.In how many years will ₹8000 earn ₹4000 simple interest at 10% per year? (a) 4 years (b) 6 years (c) 10 years (d) 5 years
30. 30.₹2000 is invested at 10% per year simple interest. What is the amount after 5 years? (a) ₹3000 (b) ₹2200 (c) ₹1000 (d) ₹3200
31. 31.What is the simple interest on ₹2500 at 11% per year for 4 years? (a) ₹3600 (b) ₹275 (c) ₹1100 (d) ₹1375
32. 32.The simple interest on ₹3500 for 5 years is ₹1225. What is the rate per year? (a) 6% (b) 8% (c) 7% (d) 35%
33. 33.The simple interest on ₹3500 for 3 years is ₹1155. What is the rate per year? (a) 12% (b) 10% (c) 11% (d) 33%
34. 34.What is the simple interest on ₹9000 at 6% per year for 3 years? (a) ₹540 (b) ₹1620 (c) ₹2160 (d) ₹10620
35. 35.In how many years will ₹6000 earn ₹2160 simple interest at 12% per year? (a) 4 years (b) 2 years (c) 3 years (d) 6 years
36. 36.The simple interest on ₹4500 for 5 years is ₹1350. What is the rate per year? (a) 5% (b) 7% (c) 30% (d) 6%
37. 37.What is the simple interest on ₹5500 at 12% per year for 5 years? (a) ₹660 (b) ₹3300 (c) ₹3960 (d) ₹8800
38. 38.What is the simple interest on ₹2500 at 8% per year for 2 years? (a) ₹200 (b) ₹2900 (c) ₹600 (d) ₹400
39. 39.In how many years will ₹4000 earn ₹240 simple interest at 3% per year? (a) 3 years (b) 1 year (c) 2 years (d) 4 years
40. 40.₹3000 is invested at 6% per year simple interest. What is the amount after 5 years? (a) ₹3900 (b) ₹900 (c) ₹3180 (d) ₹4080

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