Simple Interest Worksheet for Maths Olympiad

Maths Olympiad topic 16: Simple interest · Set 281 · 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 ₹10000 for 3 years is ₹600. What is the rate per year? (a) 6% (b) 3% (c) 1% (d) 2%
2. 2.What is the simple interest on ₹8000 at 2% per year for 3 years? (a) ₹640 (b) ₹480 (c) ₹160 (d) ₹8480
3. 3.₹2000 is invested at 3% per year simple interest. What is the amount after 5 years? (a) ₹300 (b) ₹2360 (c) ₹2300 (d) ₹2060
4. 4.In how many years will ₹10000 earn ₹1800 simple interest at 6% per year? (a) 4 years (b) 6 years (c) 3 years (d) 2 years
5. 5.₹4000 is invested at 3% per year simple interest. What is the amount after 5 years? (a) ₹600 (b) ₹4720 (c) ₹4600 (d) ₹4120
6. 6.In how many years will ₹2000 earn ₹320 simple interest at 8% per year? (a) 4 years (b) 3 years (c) 2 years (d) 1 year
7. 7.The simple interest on ₹7500 for 3 years is ₹675. What is the rate per year? (a) 4% (b) 2% (c) 3% (d) 9%
8. 8.The simple interest on ₹2000 for 5 years is ₹800. What is the rate per year? (a) 7% (b) 8% (c) 40% (d) 9%
9. 9.What is the simple interest on ₹9000 at 11% per year for 2 years? (a) ₹990 (b) ₹10980 (c) ₹2970 (d) ₹1980
10. 10.₹2000 is invested at 10% per year simple interest. What is the amount after 3 years? (a) ₹2200 (b) ₹600 (c) ₹2800 (d) ₹2600
11. 11.What is the simple interest on ₹9000 at 11% per year for 5 years? (a) ₹990 (b) ₹13950 (c) ₹4950 (d) ₹5940
12. 12.What is the simple interest on ₹8500 at 3% per year for 4 years? (a) ₹9520 (b) ₹1020 (c) ₹255 (d) ₹1275
13. 13.₹6000 is invested at 7% per year simple interest. What is the amount after 5 years? (a) ₹8100 (b) ₹6420 (c) ₹2100 (d) ₹8520
14. 14.In how many years will ₹5500 earn ₹3025 simple interest at 11% per year? (a) 6 years (b) 4 years (c) 5 years (d) 10 years
15. 15.The simple interest on ₹2000 for 4 years is ₹880. What is the rate per year? (a) 10% (b) 11% (c) 12% (d) 44%
16. 16.In how many years will ₹3500 earn ₹525 simple interest at 5% per year? (a) 4 years (b) 6 years (c) 3 years (d) 2 years
17. 17.₹8500 is invested at 6% per year simple interest. What is the amount after 4 years? (a) ₹11050 (b) ₹10540 (c) ₹2040 (d) ₹9010
18. 18.What is the simple interest on ₹7000 at 8% per year for 2 years? (a) ₹560 (b) ₹1120 (c) ₹1680 (d) ₹8120
19. 19.In how many years will ₹7000 earn ₹1260 simple interest at 9% per year? (a) 3 years (b) 2 years (c) 1 year (d) 4 years
20. 20.In how many years will ₹1000 earn ₹400 simple interest at 8% per year? (a) 6 years (b) 10 years (c) 4 years (d) 5 years
21. 21.In how many years will ₹4000 earn ₹1600 simple interest at 8% per year? (a) 4 years (b) 10 years (c) 6 years (d) 5 years
22. 22.What is the simple interest on ₹4000 at 10% per year for 2 years? (a) ₹800 (b) ₹400 (c) ₹4800 (d) ₹1200
23. 23.The simple interest on ₹4500 for 2 years is ₹180. What is the rate per year? (a) 4% (b) 1% (c) 2% (d) 3%
24. 24.What is the simple interest on ₹2000 at 9% per year for 2 years? (a) ₹180 (b) ₹540 (c) ₹2360 (d) ₹360
25. 25.The simple interest on ₹1500 for 3 years is ₹90. What is the rate per year? (a) 6% (b) 3% (c) 2% (d) 1%
26. 26.The simple interest on ₹4000 for 5 years is ₹1800. What is the rate per year? (a) 8% (b) 9% (c) 45% (d) 10%
27. 27.₹2000 is invested at 12% per year simple interest. What is the amount after 4 years? (a) ₹2240 (b) ₹960 (c) ₹2960 (d) ₹3200
28. 28.₹2000 is invested at 9% per year simple interest. What is the amount after 3 years? (a) ₹540 (b) ₹2720 (c) ₹2540 (d) ₹2180
29. 29.The simple interest on ₹7000 for 4 years is ₹560. What is the rate per year? (a) 1% (b) 3% (c) 8% (d) 2%
30. 30.₹8000 is invested at 6% per year simple interest. What is the amount after 2 years? (a) ₹8480 (b) ₹960 (c) ₹8960 (d) ₹9440
31. 31.What is the simple interest on ₹9500 at 2% per year for 4 years? (a) ₹10260 (b) ₹190 (c) ₹760 (d) ₹950
32. 32.In how many years will ₹6000 earn ₹360 simple interest at 3% per year? (a) 3 years (b) 2 years (c) 4 years (d) 1 year
33. 33.₹6000 is invested at 10% per year simple interest. What is the amount after 2 years? (a) ₹1200 (b) ₹7200 (c) ₹6600 (d) ₹7800
34. 34.₹1500 is invested at 3% per year simple interest. What is the amount after 4 years? (a) ₹1725 (b) ₹1680 (c) ₹1545 (d) ₹180
35. 35.In how many years will ₹1000 earn ₹360 simple interest at 9% per year? (a) 3 years (b) 4 years (c) 8 years (d) 5 years
36. 36.The simple interest on ₹3000 for 3 years is ₹270. What is the rate per year? (a) 4% (b) 2% (c) 9% (d) 3%
37. 37.In how many years will ₹3000 earn ₹180 simple interest at 3% per year? (a) 3 years (b) 2 years (c) 1 year (d) 4 years
38. 38.₹4000 is invested at 7% per year simple interest. What is the amount after 2 years? (a) ₹4840 (b) ₹4560 (c) ₹4280 (d) ₹560
39. 39.What is the simple interest on ₹6500 at 10% per year for 3 years? (a) ₹650 (b) ₹2600 (c) ₹8450 (d) ₹1950
40. 40.What is the simple interest on ₹5000 at 2% per year for 3 years? (a) ₹5300 (b) ₹100 (c) ₹400 (d) ₹300

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