Simple Interest Worksheet for Maths Olympiad

Maths Olympiad topic 16: Simple interest · Set 981 · 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) 2 years (b) 1 year (c) 4 years (d) 3 years
2. 2.₹7000 is invested at 2% per year simple interest. What is the amount after 2 years? (a) ₹7420 (b) ₹7280 (c) ₹7140 (d) ₹280
3. 3.What is the simple interest on ₹3000 at 6% per year for 4 years? (a) ₹720 (b) ₹180 (c) ₹900 (d) ₹3720
4. 4.The simple interest on ₹7000 for 5 years is ₹2100. What is the rate per year? (a) 7% (b) 5% (c) 6% (d) 30%
5. 5.The simple interest on ₹8000 for 3 years is ₹720. What is the rate per year? (a) 3% (b) 9% (c) 2% (d) 4%
6. 6.₹2500 is invested at 4% per year simple interest. What is the amount after 2 years? (a) ₹2800 (b) ₹2700 (c) ₹2600 (d) ₹200
7. 7.In how many years will ₹2500 earn ₹450 simple interest at 6% per year? (a) 2 years (b) 6 years (c) 3 years (d) 4 years
8. 8.The simple interest on ₹1500 for 5 years is ₹450. What is the rate per year? (a) 7% (b) 6% (c) 30% (d) 5%
9. 9.What is the simple interest on ₹3000 at 12% per year for 3 years? (a) ₹1440 (b) ₹1080 (c) ₹4080 (d) ₹360
10. 10.₹5500 is invested at 9% per year simple interest. What is the amount after 5 years? (a) ₹7975 (b) ₹8470 (c) ₹5995 (d) ₹2475
11. 11.₹9500 is invested at 3% per year simple interest. What is the amount after 5 years? (a) ₹1425 (b) ₹11210 (c) ₹10925 (d) ₹9785
12. 12.The simple interest on ₹9000 for 4 years is ₹1800. What is the rate per year? (a) 4% (b) 6% (c) 20% (d) 5%
13. 13.₹8500 is invested at 6% per year simple interest. What is the amount after 2 years? (a) ₹9520 (b) ₹1020 (c) ₹9010 (d) ₹10030
14. 14.₹4000 is invested at 11% per year simple interest. What is the amount after 4 years? (a) ₹5760 (b) ₹6200 (c) ₹4440 (d) ₹1760
15. 15.The simple interest on ₹10000 for 2 years is ₹1400. What is the rate per year? (a) 8% (b) 6% (c) 7% (d) 14%
16. 16.What is the simple interest on ₹5000 at 5% per year for 3 years? (a) ₹250 (b) ₹1000 (c) ₹750 (d) ₹5750
17. 17.What is the simple interest on ₹2000 at 6% per year for 4 years? (a) ₹2480 (b) ₹600 (c) ₹120 (d) ₹480
18. 18.What is the simple interest on ₹7000 at 2% per year for 4 years? (a) ₹7560 (b) ₹140 (c) ₹560 (d) ₹700
19. 19.₹3500 is invested at 2% per year simple interest. What is the amount after 2 years? (a) ₹3570 (b) ₹3710 (c) ₹140 (d) ₹3640
20. 20.The simple interest on ₹1500 for 2 years is ₹90. What is the rate per year? (a) 2% (b) 3% (c) 4% (d) 6%
21. 21.The simple interest on ₹10000 for 4 years is ₹2400. What is the rate per year? (a) 7% (b) 24% (c) 5% (d) 6%
22. 22.The simple interest on ₹2000 for 2 years is ₹120. What is the rate per year? (a) 2% (b) 6% (c) 4% (d) 3%
23. 23.What is the simple interest on ₹9500 at 4% per year for 4 years? (a) ₹380 (b) ₹11020 (c) ₹1900 (d) ₹1520
24. 24.What is the simple interest on ₹6500 at 10% per year for 3 years? (a) ₹1950 (b) ₹2600 (c) ₹8450 (d) ₹650
25. 25.What is the simple interest on ₹2000 at 12% per year for 4 years? (a) ₹2960 (b) ₹1200 (c) ₹960 (d) ₹240
26. 26.What is the simple interest on ₹1000 at 2% per year for 2 years? (a) ₹1040 (b) ₹20 (c) ₹60 (d) ₹40
27. 27.In how many years will ₹2000 earn ₹280 simple interest at 7% per year? (a) 2 years (b) 1 year (c) 3 years (d) 4 years
28. 28.The simple interest on ₹7500 for 3 years is ₹1800. What is the rate per year? (a) 9% (b) 24% (c) 7% (d) 8%
29. 29.In how many years will ₹4000 earn ₹640 simple interest at 8% per year? (a) 3 years (b) 1 year (c) 4 years (d) 2 years
30. 30.In how many years will ₹1500 earn ₹600 simple interest at 10% per year? (a) 3 years (b) 5 years (c) 8 years (d) 4 years
31. 31.₹6500 is invested at 8% per year simple interest. What is the amount after 4 years? (a) ₹2080 (b) ₹7020 (c) ₹8580 (d) ₹9100
32. 32.₹3500 is invested at 7% per year simple interest. What is the amount after 4 years? (a) ₹4725 (b) ₹980 (c) ₹3745 (d) ₹4480
33. 33.What is the simple interest on ₹3000 at 9% per year for 3 years? (a) ₹270 (b) ₹1080 (c) ₹3810 (d) ₹810
34. 34.In how many years will ₹6000 earn ₹1080 simple interest at 9% per year? (a) 1 year (b) 4 years (c) 3 years (d) 2 years
35. 35.The simple interest on ₹9000 for 3 years is ₹2430. What is the rate per year? (a) 27% (b) 10% (c) 8% (d) 9%
36. 36.The simple interest on ₹8500 for 3 years is ₹765. What is the rate per year? (a) 4% (b) 9% (c) 2% (d) 3%
37. 37.₹3000 is invested at 12% per year simple interest. What is the amount after 4 years? (a) ₹4800 (b) ₹1440 (c) ₹4440 (d) ₹3360
38. 38.The simple interest on ₹8500 for 3 years is ₹2550. What is the rate per year? (a) 11% (b) 30% (c) 9% (d) 10%
39. 39.₹9000 is invested at 8% per year simple interest. What is the amount after 5 years? (a) ₹3600 (b) ₹9720 (c) ₹12600 (d) ₹13320
40. 40.₹7500 is invested at 4% per year simple interest. What is the amount after 5 years? (a) ₹9000 (b) ₹9300 (c) ₹1500 (d) ₹7800

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