Simple Interest Worksheet for Maths Olympiad

Maths Olympiad topic 16: Simple interest · Set 149 · 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 ₹8000 earn ₹1440 simple interest at 9% per year? (a) 3 years (b) 4 years (c) 1 year (d) 2 years
2. 2.₹3500 is invested at 4% per year simple interest. What is the amount after 5 years? (a) ₹4200 (b) ₹3640 (c) ₹700 (d) ₹4340
3. 3.₹3500 is invested at 2% per year simple interest. What is the amount after 3 years? (a) ₹210 (b) ₹3570 (c) ₹3780 (d) ₹3710
4. 4.₹5500 is invested at 11% per year simple interest. What is the amount after 2 years? (a) ₹1210 (b) ₹6710 (c) ₹6105 (d) ₹7315
5. 5.In how many years will ₹1000 earn ₹550 simple interest at 11% per year? (a) 4 years (b) 6 years (c) 5 years (d) 10 years
6. 6.The simple interest on ₹7500 for 3 years is ₹900. What is the rate per year? (a) 5% (b) 12% (c) 3% (d) 4%
7. 7.What is the simple interest on ₹7000 at 3% per year for 5 years? (a) ₹1260 (b) ₹210 (c) ₹8050 (d) ₹1050
8. 8.₹8500 is invested at 3% per year simple interest. What is the amount after 3 years? (a) ₹8755 (b) ₹9520 (c) ₹765 (d) ₹9265
9. 9.In how many years will ₹5000 earn ₹750 simple interest at 3% per year? (a) 5 years (b) 10 years (c) 6 years (d) 4 years
10. 10.In how many years will ₹3500 earn ₹140 simple interest at 2% per year? (a) 2 years (b) 1 year (c) 4 years (d) 3 years
11. 11.In how many years will ₹1500 earn ₹300 simple interest at 4% per year? (a) 10 years (b) 4 years (c) 5 years (d) 6 years
12. 12.₹6000 is invested at 5% per year simple interest. What is the amount after 3 years? (a) ₹7200 (b) ₹900 (c) ₹6300 (d) ₹6900
13. 13.₹4000 is invested at 6% per year simple interest. What is the amount after 5 years? (a) ₹4240 (b) ₹5440 (c) ₹5200 (d) ₹1200
14. 14.What is the simple interest on ₹1500 at 8% per year for 5 years? (a) ₹2100 (b) ₹120 (c) ₹720 (d) ₹600
15. 15.₹10000 is invested at 9% per year simple interest. What is the amount after 2 years? (a) ₹10900 (b) ₹11800 (c) ₹1800 (d) ₹12700
16. 16.₹8000 is invested at 2% per year simple interest. What is the amount after 2 years? (a) ₹8160 (b) ₹8320 (c) ₹8480 (d) ₹320
17. 17.The simple interest on ₹7500 for 3 years is ₹1350. What is the rate per year? (a) 7% (b) 18% (c) 6% (d) 5%
18. 18.The simple interest on ₹3500 for 3 years is ₹210. What is the rate per year? (a) 1% (b) 3% (c) 2% (d) 6%
19. 19.The simple interest on ₹3000 for 5 years is ₹1650. What is the rate per year? (a) 10% (b) 55% (c) 11% (d) 12%
20. 20.₹1500 is invested at 12% per year simple interest. What is the amount after 3 years? (a) ₹2220 (b) ₹1680 (c) ₹2040 (d) ₹540
21. 21.What is the simple interest on ₹2500 at 3% per year for 3 years? (a) ₹300 (b) ₹2725 (c) ₹225 (d) ₹75
22. 22.In how many years will ₹5500 earn ₹880 simple interest at 4% per year? (a) 5 years (b) 8 years (c) 3 years (d) 4 years
23. 23.The simple interest on ₹6000 for 5 years is ₹1500. What is the rate per year? (a) 5% (b) 25% (c) 6% (d) 4%
24. 24.What is the simple interest on ₹6500 at 8% per year for 3 years? (a) ₹520 (b) ₹1560 (c) ₹8060 (d) ₹2080
25. 25.In how many years will ₹1000 earn ₹320 simple interest at 8% per year? (a) 3 years (b) 8 years (c) 5 years (d) 4 years
26. 26.₹5000 is invested at 12% per year simple interest. What is the amount after 2 years? (a) ₹1200 (b) ₹6800 (c) ₹5600 (d) ₹6200
27. 27.The simple interest on ₹1000 for 4 years is ₹400. What is the rate per year? (a) 9% (b) 10% (c) 40% (d) 11%
28. 28.₹2000 is invested at 7% per year simple interest. What is the amount after 5 years? (a) ₹2140 (b) ₹2840 (c) ₹2700 (d) ₹700
29. 29.What is the simple interest on ₹3500 at 9% per year for 5 years? (a) ₹1890 (b) ₹315 (c) ₹1575 (d) ₹5075
30. 30.What is the simple interest on ₹1000 at 8% per year for 4 years? (a) ₹1320 (b) ₹80 (c) ₹400 (d) ₹320
31. 31.What is the simple interest on ₹7500 at 3% per year for 3 years? (a) ₹8175 (b) ₹225 (c) ₹675 (d) ₹900
32. 32.In how many years will ₹3000 earn ₹630 simple interest at 7% per year? (a) 6 years (b) 2 years (c) 4 years (d) 3 years
33. 33.The simple interest on ₹3500 for 4 years is ₹1680. What is the rate per year? (a) 12% (b) 11% (c) 48% (d) 13%
34. 34.The simple interest on ₹2000 for 4 years is ₹720. What is the rate per year? (a) 8% (b) 10% (c) 9% (d) 36%
35. 35.What is the simple interest on ₹4000 at 7% per year for 5 years? (a) ₹1400 (b) ₹5400 (c) ₹280 (d) ₹1680
36. 36.What is the simple interest on ₹8000 at 8% per year for 3 years? (a) ₹9920 (b) ₹1920 (c) ₹640 (d) ₹2560
37. 37.In how many years will ₹1000 earn ₹180 simple interest at 9% per year? (a) 2 years (b) 4 years (c) 1 year (d) 3 years
38. 38.What is the simple interest on ₹1000 at 11% per year for 2 years? (a) ₹220 (b) ₹1220 (c) ₹110 (d) ₹330
39. 39.In how many years will ₹8500 earn ₹2125 simple interest at 5% per year? (a) 4 years (b) 5 years (c) 10 years (d) 6 years
40. 40.In how many years will ₹1500 earn ₹60 simple interest at 2% per year? (a) 1 year (b) 2 years (c) 4 years (d) 3 years

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