Simple Interest Worksheet for Maths Olympiad

Maths Olympiad topic 16: Simple interest · Set 205 · 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 ₹900 simple interest at 4% per year? (a) 10 years (b) 5 years (c) 6 years (d) 4 years
2. 2.What is the simple interest on ₹5000 at 9% per year for 4 years? (a) ₹2250 (b) ₹6800 (c) ₹450 (d) ₹1800
3. 3.The simple interest on ₹7000 for 3 years is ₹1890. What is the rate per year? (a) 8% (b) 27% (c) 10% (d) 9%
4. 4.In how many years will ₹6000 earn ₹1080 simple interest at 6% per year? (a) 4 years (b) 2 years (c) 3 years (d) 6 years
5. 5.In how many years will ₹4500 earn ₹2475 simple interest at 11% per year? (a) 10 years (b) 4 years (c) 6 years (d) 5 years
6. 6.₹2500 is invested at 9% per year simple interest. What is the amount after 2 years? (a) ₹450 (b) ₹3175 (c) ₹2725 (d) ₹2950
7. 7.What is the simple interest on ₹5500 at 11% per year for 5 years? (a) ₹8525 (b) ₹3025 (c) ₹3630 (d) ₹605
8. 8.What is the simple interest on ₹8500 at 6% per year for 5 years? (a) ₹510 (b) ₹11050 (c) ₹3060 (d) ₹2550
9. 9.The simple interest on ₹8500 for 5 years is ₹2975. What is the rate per year? (a) 6% (b) 35% (c) 8% (d) 7%
10. 10.What is the simple interest on ₹2000 at 4% per year for 5 years? (a) ₹80 (b) ₹480 (c) ₹2400 (d) ₹400
11. 11.In how many years will ₹10000 earn ₹1000 simple interest at 2% per year? (a) 5 years (b) 4 years (c) 10 years (d) 6 years
12. 12.₹3000 is invested at 4% per year simple interest. What is the amount after 2 years? (a) ₹3120 (b) ₹240 (c) ₹3360 (d) ₹3240
13. 13.₹6500 is invested at 9% per year simple interest. What is the amount after 3 years? (a) ₹8840 (b) ₹8255 (c) ₹7085 (d) ₹1755
14. 14.In how many years will ₹5500 earn ₹990 simple interest at 9% per year? (a) 4 years (b) 1 year (c) 2 years (d) 3 years
15. 15.₹5000 is invested at 10% per year simple interest. What is the amount after 2 years? (a) ₹5500 (b) ₹6500 (c) ₹1000 (d) ₹6000
16. 16.What is the simple interest on ₹3000 at 12% per year for 5 years? (a) ₹2160 (b) ₹4800 (c) ₹1800 (d) ₹360
17. 17.The simple interest on ₹1000 for 4 years is ₹80. What is the rate per year? (a) 3% (b) 8% (c) 1% (d) 2%
18. 18.₹5000 is invested at 12% per year simple interest. What is the amount after 5 years? (a) ₹8000 (b) ₹8600 (c) ₹5600 (d) ₹3000
19. 19.₹9500 is invested at 10% per year simple interest. What is the amount after 2 years? (a) ₹10450 (b) ₹1900 (c) ₹12350 (d) ₹11400
20. 20.The simple interest on ₹6000 for 3 years is ₹1080. What is the rate per year? (a) 7% (b) 5% (c) 6% (d) 18%
21. 21.₹9000 is invested at 11% per year simple interest. What is the amount after 2 years? (a) ₹10980 (b) ₹1980 (c) ₹11970 (d) ₹9990
22. 22.₹3500 is invested at 11% per year simple interest. What is the amount after 2 years? (a) ₹4655 (b) ₹770 (c) ₹4270 (d) ₹3885
23. 23.The simple interest on ₹9500 for 5 years is ₹4750. What is the rate per year? (a) 11% (b) 9% (c) 10% (d) 50%
24. 24.In how many years will ₹2500 earn ₹525 simple interest at 7% per year? (a) 2 years (b) 6 years (c) 4 years (d) 3 years
25. 25.What is the simple interest on ₹3000 at 8% per year for 4 years? (a) ₹240 (b) ₹3960 (c) ₹960 (d) ₹1200
26. 26.₹3000 is invested at 6% per year simple interest. What is the amount after 2 years? (a) ₹3180 (b) ₹3360 (c) ₹360 (d) ₹3540
27. 27.In how many years will ₹2500 earn ₹300 simple interest at 4% per year? (a) 4 years (b) 6 years (c) 3 years (d) 2 years
28. 28.In how many years will ₹2000 earn ₹800 simple interest at 10% per year? (a) 5 years (b) 8 years (c) 4 years (d) 3 years
29. 29.What is the simple interest on ₹4500 at 4% per year for 2 years? (a) ₹180 (b) ₹4860 (c) ₹540 (d) ₹360
30. 30.₹4500 is invested at 4% per year simple interest. What is the amount after 5 years? (a) ₹5400 (b) ₹4680 (c) ₹900 (d) ₹5580
31. 31.₹6000 is invested at 2% per year simple interest. What is the amount after 4 years? (a) ₹480 (b) ₹6480 (c) ₹6120 (d) ₹6600
32. 32.The simple interest on ₹2500 for 3 years is ₹375. What is the rate per year? (a) 5% (b) 4% (c) 6% (d) 15%
33. 33.What is the simple interest on ₹1500 at 2% per year for 2 years? (a) ₹60 (b) ₹1560 (c) ₹30 (d) ₹90
34. 34.The simple interest on ₹8000 for 3 years is ₹1680. What is the rate per year? (a) 6% (b) 21% (c) 8% (d) 7%
35. 35.₹9000 is invested at 5% per year simple interest. What is the amount after 2 years? (a) ₹10350 (b) ₹900 (c) ₹9450 (d) ₹9900
36. 36.In how many years will ₹1000 earn ₹550 simple interest at 11% per year? (a) 5 years (b) 6 years (c) 4 years (d) 10 years
37. 37.₹2500 is invested at 7% per year simple interest. What is the amount after 3 years? (a) ₹3025 (b) ₹525 (c) ₹3200 (d) ₹2675
38. 38.What is the simple interest on ₹7000 at 7% per year for 3 years? (a) ₹8470 (b) ₹1960 (c) ₹1470 (d) ₹490
39. 39.The simple interest on ₹2500 for 2 years is ₹350. What is the rate per year? (a) 8% (b) 14% (c) 7% (d) 6%
40. 40.The simple interest on ₹7500 for 2 years is ₹300. What is the rate per year? (a) 3% (b) 4% (c) 1% (d) 2%

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