Simple Interest Worksheet for Maths Olympiad

Maths Olympiad topic 16: Simple interest · Set 235 · 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.The simple interest on ₹1500 for 3 years is ₹450. What is the rate per year? (a) 9% (b) 11% (c) 10% (d) 30%
2. 2.What is the simple interest on ₹1500 at 6% per year for 3 years? (a) ₹1770 (b) ₹270 (c) ₹90 (d) ₹360
3. 3.₹4500 is invested at 3% per year simple interest. What is the amount after 4 years? (a) ₹5175 (b) ₹540 (c) ₹4635 (d) ₹5040
4. 4.₹6000 is invested at 3% per year simple interest. What is the amount after 3 years? (a) ₹6540 (b) ₹540 (c) ₹6720 (d) ₹6180
5. 5.What is the simple interest on ₹8000 at 6% per year for 5 years? (a) ₹2880 (b) ₹480 (c) ₹10400 (d) ₹2400
6. 6.What is the simple interest on ₹4000 at 5% per year for 2 years? (a) ₹4400 (b) ₹200 (c) ₹600 (d) ₹400
7. 7.In how many years will ₹8500 earn ₹850 simple interest at 2% per year? (a) 10 years (b) 4 years (c) 5 years (d) 6 years
8. 8.The simple interest on ₹2500 for 3 years is ₹300. What is the rate per year? (a) 5% (b) 12% (c) 3% (d) 4%
9. 9.The simple interest on ₹2000 for 2 years is ₹120. What is the rate per year? (a) 6% (b) 4% (c) 2% (d) 3%
10. 10.What is the simple interest on ₹2000 at 9% per year for 5 years? (a) ₹900 (b) ₹180 (c) ₹2900 (d) ₹1080
11. 11.₹2500 is invested at 8% per year simple interest. What is the amount after 2 years? (a) ₹2700 (b) ₹2900 (c) ₹3100 (d) ₹400
12. 12.₹4500 is invested at 9% per year simple interest. What is the amount after 3 years? (a) ₹6120 (b) ₹5715 (c) ₹1215 (d) ₹4905
13. 13.₹6500 is invested at 8% per year simple interest. What is the amount after 3 years? (a) ₹7020 (b) ₹8060 (c) ₹1560 (d) ₹8580
14. 14.₹1500 is invested at 8% per year simple interest. What is the amount after 2 years? (a) ₹240 (b) ₹1860 (c) ₹1740 (d) ₹1620
15. 15.The simple interest on ₹5500 for 5 years is ₹3025. What is the rate per year? (a) 55% (b) 11% (c) 12% (d) 10%
16. 16.₹8500 is invested at 6% per year simple interest. What is the amount after 3 years? (a) ₹10540 (b) ₹1530 (c) ₹10030 (d) ₹9010
17. 17.What is the simple interest on ₹7000 at 3% per year for 3 years? (a) ₹210 (b) ₹630 (c) ₹7630 (d) ₹840
18. 18.The simple interest on ₹3000 for 2 years is ₹660. What is the rate per year? (a) 22% (b) 10% (c) 11% (d) 12%
19. 19.The simple interest on ₹4000 for 5 years is ₹400. What is the rate per year? (a) 2% (b) 3% (c) 1% (d) 10%
20. 20.₹4500 is invested at 4% per year simple interest. What is the amount after 3 years? (a) ₹5040 (b) ₹540 (c) ₹4680 (d) ₹5220
21. 21.In how many years will ₹5500 earn ₹825 simple interest at 3% per year? (a) 4 years (b) 6 years (c) 5 years (d) 10 years
22. 22.What is the simple interest on ₹1000 at 10% per year for 3 years? (a) ₹300 (b) ₹100 (c) ₹400 (d) ₹1300
23. 23.What is the simple interest on ₹10000 at 11% per year for 4 years? (a) ₹5500 (b) ₹4400 (c) ₹1100 (d) ₹14400
24. 24.The simple interest on ₹7000 for 4 years is ₹3080. What is the rate per year? (a) 44% (b) 10% (c) 12% (d) 11%
25. 25.The simple interest on ₹9500 for 3 years is ₹1140. What is the rate per year? (a) 12% (b) 3% (c) 4% (d) 5%
26. 26.₹5000 is invested at 10% per year simple interest. What is the amount after 5 years? (a) ₹8000 (b) ₹5500 (c) ₹7500 (d) ₹2500
27. 27.What is the simple interest on ₹8000 at 6% per year for 4 years? (a) ₹9920 (b) ₹1920 (c) ₹2400 (d) ₹480
28. 28.In how many years will ₹2500 earn ₹250 simple interest at 5% per year? (a) 3 years (b) 2 years (c) 1 year (d) 4 years
29. 29.₹6500 is invested at 12% per year simple interest. What is the amount after 3 years? (a) ₹9620 (b) ₹7280 (c) ₹2340 (d) ₹8840
30. 30.₹7000 is invested at 4% per year simple interest. What is the amount after 2 years? (a) ₹560 (b) ₹7560 (c) ₹7280 (d) ₹7840
31. 31.The simple interest on ₹6500 for 5 years is ₹2600. What is the rate per year? (a) 9% (b) 8% (c) 7% (d) 40%
32. 32.₹10000 is invested at 12% per year simple interest. What is the amount after 5 years? (a) ₹11200 (b) ₹6000 (c) ₹16000 (d) ₹17200
33. 33.₹9000 is invested at 3% per year simple interest. What is the amount after 4 years? (a) ₹9270 (b) ₹10350 (c) ₹10080 (d) ₹1080
34. 34.What is the simple interest on ₹6500 at 3% per year for 3 years? (a) ₹195 (b) ₹585 (c) ₹7085 (d) ₹780
35. 35.The simple interest on ₹5000 for 2 years is ₹300. What is the rate per year? (a) 6% (b) 4% (c) 2% (d) 3%
36. 36.₹2000 is invested at 3% per year simple interest. What is the amount after 2 years? (a) ₹2120 (b) ₹2060 (c) ₹2180 (d) ₹120
37. 37.The simple interest on ₹3000 for 3 years is ₹990. What is the rate per year? (a) 11% (b) 33% (c) 12% (d) 10%
38. 38.What is the simple interest on ₹9500 at 4% per year for 2 years? (a) ₹1140 (b) ₹760 (c) ₹380 (d) ₹10260
39. 39.In how many years will ₹5500 earn ₹990 simple interest at 6% per year? (a) 4 years (b) 2 years (c) 3 years (d) 6 years
40. 40.In how many years will ₹10000 earn ₹2000 simple interest at 4% per year? (a) 4 years (b) 5 years (c) 10 years (d) 6 years

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