Simple Interest Worksheet for Maths Olympiad

Maths Olympiad topic 16: Simple interest · Set 629 · 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 5 years is ₹825. What is the rate per year? (a) 12% (b) 55% (c) 11% (d) 10%
2. 2.In how many years will ₹8500 earn ₹1870 simple interest at 11% per year? (a) 1 year (b) 4 years (c) 3 years (d) 2 years
3. 3.What is the simple interest on ₹9500 at 2% per year for 2 years? (a) ₹9880 (b) ₹190 (c) ₹570 (d) ₹380
4. 4.What is the simple interest on ₹4500 at 9% per year for 3 years? (a) ₹5715 (b) ₹1620 (c) ₹1215 (d) ₹405
5. 5.₹5500 is invested at 7% per year simple interest. What is the amount after 5 years? (a) ₹7425 (b) ₹1925 (c) ₹7810 (d) ₹5885
6. 6.₹8500 is invested at 9% per year simple interest. What is the amount after 2 years? (a) ₹10795 (b) ₹9265 (c) ₹10030 (d) ₹1530
7. 7.₹1000 is invested at 5% per year simple interest. What is the amount after 3 years? (a) ₹1150 (b) ₹150 (c) ₹1200 (d) ₹1050
8. 8.₹3000 is invested at 12% per year simple interest. What is the amount after 4 years? (a) ₹3360 (b) ₹4800 (c) ₹1440 (d) ₹4440
9. 9.In how many years will ₹7500 earn ₹2100 simple interest at 7% per year? (a) 5 years (b) 4 years (c) 8 years (d) 3 years
10. 10.The simple interest on ₹3000 for 5 years is ₹1500. What is the rate per year? (a) 9% (b) 50% (c) 11% (d) 10%
11. 11.The simple interest on ₹4500 for 2 years is ₹360. What is the rate per year? (a) 5% (b) 4% (c) 8% (d) 3%
12. 12.The simple interest on ₹5500 for 2 years is ₹330. What is the rate per year? (a) 4% (b) 6% (c) 3% (d) 2%
13. 13.₹7500 is invested at 10% per year simple interest. What is the amount after 4 years? (a) ₹8250 (b) ₹3000 (c) ₹11250 (d) ₹10500
14. 14.What is the simple interest on ₹3500 at 11% per year for 3 years? (a) ₹1155 (b) ₹1540 (c) ₹4655 (d) ₹385
15. 15.What is the simple interest on ₹7500 at 9% per year for 4 years? (a) ₹10200 (b) ₹675 (c) ₹3375 (d) ₹2700
16. 16.₹1500 is invested at 10% per year simple interest. What is the amount after 4 years? (a) ₹2100 (b) ₹1650 (c) ₹600 (d) ₹2250
17. 17.The simple interest on ₹9000 for 5 years is ₹3600. What is the rate per year? (a) 40% (b) 9% (c) 8% (d) 7%
18. 18.₹4000 is invested at 11% per year simple interest. What is the amount after 3 years? (a) ₹1320 (b) ₹4440 (c) ₹5760 (d) ₹5320
19. 19.What is the simple interest on ₹3000 at 2% per year for 4 years? (a) ₹3240 (b) ₹60 (c) ₹300 (d) ₹240
20. 20.₹6000 is invested at 9% per year simple interest. What is the amount after 4 years? (a) ₹8700 (b) ₹6540 (c) ₹2160 (d) ₹8160
21. 21.₹10000 is invested at 11% per year simple interest. What is the amount after 2 years? (a) ₹11100 (b) ₹2200 (c) ₹12200 (d) ₹13300
22. 22.₹9000 is invested at 8% per year simple interest. What is the amount after 3 years? (a) ₹11880 (b) ₹9720 (c) ₹11160 (d) ₹2160
23. 23.In how many years will ₹2000 earn ₹1100 simple interest at 11% per year? (a) 10 years (b) 6 years (c) 4 years (d) 5 years
24. 24.What is the simple interest on ₹9500 at 6% per year for 5 years? (a) ₹570 (b) ₹12350 (c) ₹3420 (d) ₹2850
25. 25.₹8500 is invested at 6% per year simple interest. What is the amount after 5 years? (a) ₹2550 (b) ₹9010 (c) ₹11560 (d) ₹11050
26. 26.What is the simple interest on ₹4500 at 5% per year for 3 years? (a) ₹900 (b) ₹5175 (c) ₹225 (d) ₹675
27. 27.In how many years will ₹9000 earn ₹720 simple interest at 2% per year? (a) 3 years (b) 8 years (c) 5 years (d) 4 years
28. 28.The simple interest on ₹1500 for 3 years is ₹90. What is the rate per year? (a) 3% (b) 6% (c) 1% (d) 2%
29. 29.₹9000 is invested at 8% per year simple interest. What is the amount after 4 years? (a) ₹2880 (b) ₹11880 (c) ₹9720 (d) ₹12600
30. 30.What is the simple interest on ₹8000 at 8% per year for 2 years? (a) ₹640 (b) ₹9280 (c) ₹1920 (d) ₹1280
31. 31.₹1000 is invested at 2% per year simple interest. What is the amount after 3 years? (a) ₹1080 (b) ₹60 (c) ₹1020 (d) ₹1060
32. 32.In how many years will ₹6500 earn ₹1300 simple interest at 5% per year? (a) 8 years (b) 3 years (c) 5 years (d) 4 years
33. 33.The simple interest on ₹6500 for 5 years is ₹975. What is the rate per year? (a) 3% (b) 15% (c) 2% (d) 4%
34. 34.₹3500 is invested at 11% per year simple interest. What is the amount after 2 years? (a) ₹4655 (b) ₹3885 (c) ₹770 (d) ₹4270
35. 35.The simple interest on ₹6000 for 2 years is ₹1080. What is the rate per year? (a) 8% (b) 10% (c) 18% (d) 9%
36. 36.What is the simple interest on ₹6500 at 8% per year for 2 years? (a) ₹520 (b) ₹1560 (c) ₹1040 (d) ₹7540
37. 37.What is the simple interest on ₹5500 at 5% per year for 2 years? (a) ₹825 (b) ₹6050 (c) ₹550 (d) ₹275
38. 38.The simple interest on ₹8500 for 4 years is ₹3060. What is the rate per year? (a) 10% (b) 9% (c) 8% (d) 36%
39. 39.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
40. 40.In how many years will ₹8000 earn ₹1280 simple interest at 4% per year? (a) 3 years (b) 4 years (c) 8 years (d) 5 years

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