Simple Interest Worksheet for Maths Olympiad

Maths Olympiad topic 16: Simple interest · Set 845 · 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 ₹4500 earn ₹450 simple interest at 2% per year? (a) 10 years (b) 6 years (c) 5 years (d) 4 years
2. 2.₹4000 is invested at 5% per year simple interest. What is the amount after 3 years? (a) ₹4800 (b) ₹600 (c) ₹4200 (d) ₹4600
3. 3.What is the simple interest on ₹7000 at 9% per year for 5 years? (a) ₹10150 (b) ₹3150 (c) ₹630 (d) ₹3780
4. 4.What is the simple interest on ₹6500 at 11% per year for 5 years? (a) ₹715 (b) ₹10075 (c) ₹3575 (d) ₹4290
5. 5.In how many years will ₹3500 earn ₹210 simple interest at 3% per year? (a) 1 year (b) 4 years (c) 2 years (d) 3 years
6. 6.In how many years will ₹9000 earn ₹1080 simple interest at 4% per year? (a) 4 years (b) 2 years (c) 6 years (d) 3 years
7. 7.In how many years will ₹6500 earn ₹2340 simple interest at 9% per year? (a) 5 years (b) 8 years (c) 4 years (d) 3 years
8. 8.The simple interest on ₹4000 for 3 years is ₹1080. What is the rate per year? (a) 10% (b) 9% (c) 27% (d) 8%
9. 9.₹3000 is invested at 12% per year simple interest. What is the amount after 4 years? (a) ₹3360 (b) ₹1440 (c) ₹4800 (d) ₹4440
10. 10.In how many years will ₹3500 earn ₹840 simple interest at 8% per year? (a) 3 years (b) 2 years (c) 4 years (d) 6 years
11. 11.The simple interest on ₹7000 for 4 years is ₹560. What is the rate per year? (a) 1% (b) 8% (c) 3% (d) 2%
12. 12.The simple interest on ₹8500 for 2 years is ₹850. What is the rate per year? (a) 10% (b) 6% (c) 4% (d) 5%
13. 13.What is the simple interest on ₹3000 at 10% per year for 4 years? (a) ₹4200 (b) ₹300 (c) ₹1500 (d) ₹1200
14. 14.What is the simple interest on ₹8000 at 11% per year for 2 years? (a) ₹2640 (b) ₹880 (c) ₹1760 (d) ₹9760
15. 15.The simple interest on ₹4000 for 2 years is ₹160. What is the rate per year? (a) 3% (b) 2% (c) 1% (d) 4%
16. 16.The simple interest on ₹7500 for 5 years is ₹1875. What is the rate per year? (a) 4% (b) 25% (c) 6% (d) 5%
17. 17.The simple interest on ₹3500 for 4 years is ₹1260. What is the rate per year? (a) 9% (b) 10% (c) 36% (d) 8%
18. 18.In how many years will ₹8000 earn ₹1600 simple interest at 4% per year? (a) 10 years (b) 6 years (c) 5 years (d) 4 years
19. 19.₹6000 is invested at 12% per year simple interest. What is the amount after 2 years? (a) ₹8160 (b) ₹7440 (c) ₹6720 (d) ₹1440
20. 20.The simple interest on ₹4500 for 5 years is ₹900. What is the rate per year? (a) 5% (b) 20% (c) 3% (d) 4%
21. 21.What is the simple interest on ₹2000 at 4% per year for 5 years? (a) ₹480 (b) ₹400 (c) ₹80 (d) ₹2400
22. 22.The simple interest on ₹2500 for 3 years is ₹750. What is the rate per year? (a) 30% (b) 9% (c) 11% (d) 10%
23. 23.In how many years will ₹1500 earn ₹90 simple interest at 2% per year? (a) 4 years (b) 6 years (c) 2 years (d) 3 years
24. 24.In how many years will ₹3500 earn ₹560 simple interest at 8% per year? (a) 3 years (b) 2 years (c) 4 years (d) 1 year
25. 25.₹6500 is invested at 4% per year simple interest. What is the amount after 4 years? (a) ₹7800 (b) ₹6760 (c) ₹7540 (d) ₹1040
26. 26.₹6000 is invested at 4% per year simple interest. What is the amount after 2 years? (a) ₹480 (b) ₹6720 (c) ₹6240 (d) ₹6480
27. 27.₹10000 is invested at 12% per year simple interest. What is the amount after 5 years? (a) ₹16000 (b) ₹11200 (c) ₹17200 (d) ₹6000
28. 28.₹8500 is invested at 10% per year simple interest. What is the amount after 5 years? (a) ₹4250 (b) ₹9350 (c) ₹12750 (d) ₹13600
29. 29.₹7500 is invested at 7% per year simple interest. What is the amount after 2 years? (a) ₹1050 (b) ₹9075 (c) ₹8550 (d) ₹8025
30. 30.What is the simple interest on ₹7500 at 11% per year for 5 years? (a) ₹825 (b) ₹4125 (c) ₹11625 (d) ₹4950
31. 31.What is the simple interest on ₹7500 at 11% per year for 3 years? (a) ₹825 (b) ₹3300 (c) ₹2475 (d) ₹9975
32. 32.In how many years will ₹4000 earn ₹480 simple interest at 3% per year? (a) 5 years (b) 3 years (c) 8 years (d) 4 years
33. 33.In how many years will ₹5000 earn ₹2200 simple interest at 11% per year? (a) 5 years (b) 3 years (c) 8 years (d) 4 years
34. 34.The simple interest on ₹4500 for 4 years is ₹1080. What is the rate per year? (a) 24% (b) 7% (c) 5% (d) 6%
35. 35.What is the simple interest on ₹6000 at 2% per year for 3 years? (a) ₹480 (b) ₹120 (c) ₹6360 (d) ₹360
36. 36.What is the simple interest on ₹4000 at 7% per year for 5 years? (a) ₹280 (b) ₹1400 (c) ₹5400 (d) ₹1680
37. 37.In how many years will ₹4500 earn ₹1080 simple interest at 12% per year? (a) 3 years (b) 4 years (c) 2 years (d) 1 year
38. 38.What is the simple interest on ₹3000 at 3% per year for 2 years? (a) ₹180 (b) ₹270 (c) ₹3180 (d) ₹90
39. 39.What is the simple interest on ₹1500 at 4% per year for 5 years? (a) ₹360 (b) ₹300 (c) ₹60 (d) ₹1800
40. 40.₹9000 is invested at 11% per year simple interest. What is the amount after 5 years? (a) ₹13950 (b) ₹14940 (c) ₹9990 (d) ₹4950

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