Simple Interest Worksheet for Maths Olympiad

Maths Olympiad topic 16: Simple interest · Set 447 · 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 ₹3000 earn ₹660 simple interest at 11% per year? (a) 2 years (b) 1 year (c) 3 years (d) 4 years
2. 2.₹9500 is invested at 11% per year simple interest. What is the amount after 5 years? (a) ₹14725 (b) ₹15770 (c) ₹10545 (d) ₹5225
3. 3.In how many years will ₹2000 earn ₹300 simple interest at 5% per year? (a) 3 years (b) 2 years (c) 6 years (d) 4 years
4. 4.In how many years will ₹3000 earn ₹900 simple interest at 6% per year? (a) 5 years (b) 6 years (c) 4 years (d) 10 years
5. 5.What is the simple interest on ₹4500 at 7% per year for 5 years? (a) ₹315 (b) ₹6075 (c) ₹1575 (d) ₹1890
6. 6.₹6500 is invested at 7% per year simple interest. What is the amount after 2 years? (a) ₹7865 (b) ₹910 (c) ₹7410 (d) ₹6955
7. 7.What is the simple interest on ₹9500 at 8% per year for 3 years? (a) ₹3040 (b) ₹2280 (c) ₹11780 (d) ₹760
8. 8.₹2000 is invested at 11% per year simple interest. What is the amount after 3 years? (a) ₹2880 (b) ₹2660 (c) ₹660 (d) ₹2220
9. 9.In how many years will ₹2500 earn ₹1000 simple interest at 10% per year? (a) 8 years (b) 3 years (c) 4 years (d) 5 years
10. 10.The simple interest on ₹10000 for 3 years is ₹1800. What is the rate per year? (a) 5% (b) 7% (c) 18% (d) 6%
11. 11.In how many years will ₹4000 earn ₹400 simple interest at 2% per year? (a) 6 years (b) 10 years (c) 5 years (d) 4 years
12. 12.₹8000 is invested at 10% per year simple interest. What is the amount after 2 years? (a) ₹8800 (b) ₹9600 (c) ₹10400 (d) ₹1600
13. 13.₹3500 is invested at 6% per year simple interest. What is the amount after 4 years? (a) ₹3710 (b) ₹4340 (c) ₹840 (d) ₹4550
14. 14.In how many years will ₹9000 earn ₹1620 simple interest at 6% per year? (a) 4 years (b) 3 years (c) 6 years (d) 2 years
15. 15.The simple interest on ₹9500 for 5 years is ₹3325. What is the rate per year? (a) 7% (b) 6% (c) 35% (d) 8%
16. 16.In how many years will ₹8000 earn ₹640 simple interest at 4% per year? (a) 3 years (b) 4 years (c) 1 year (d) 2 years
17. 17.₹1500 is invested at 2% per year simple interest. What is the amount after 2 years? (a) ₹1590 (b) ₹1530 (c) ₹1560 (d) ₹60
18. 18.The simple interest on ₹10000 for 4 years is ₹2400. What is the rate per year? (a) 6% (b) 5% (c) 7% (d) 24%
19. 19.What is the simple interest on ₹7500 at 12% per year for 2 years? (a) ₹1800 (b) ₹2700 (c) ₹9300 (d) ₹900
20. 20.The simple interest on ₹4500 for 5 years is ₹450. What is the rate per year? (a) 1% (b) 2% (c) 3% (d) 10%
21. 21.What is the simple interest on ₹4500 at 10% per year for 2 years? (a) ₹1350 (b) ₹450 (c) ₹900 (d) ₹5400
22. 22.In how many years will ₹2000 earn ₹700 simple interest at 7% per year? (a) 5 years (b) 6 years (c) 10 years (d) 4 years
23. 23.The simple interest on ₹7000 for 5 years is ₹2450. What is the rate per year? (a) 35% (b) 6% (c) 8% (d) 7%
24. 24.What is the simple interest on ₹3500 at 11% per year for 4 years? (a) ₹1540 (b) ₹385 (c) ₹5040 (d) ₹1925
25. 25.In how many years will ₹6000 earn ₹2640 simple interest at 11% per year? (a) 3 years (b) 5 years (c) 4 years (d) 8 years
26. 26.₹5000 is invested at 10% per year simple interest. What is the amount after 4 years? (a) ₹7000 (b) ₹5500 (c) ₹7500 (d) ₹2000
27. 27.In how many years will ₹1000 earn ₹60 simple interest at 2% per year? (a) 6 years (b) 4 years (c) 2 years (d) 3 years
28. 28.The simple interest on ₹1500 for 5 years is ₹900. What is the rate per year? (a) 12% (b) 60% (c) 13% (d) 11%
29. 29.What is the simple interest on ₹2000 at 4% per year for 3 years? (a) ₹80 (b) ₹320 (c) ₹240 (d) ₹2240
30. 30.In how many years will ₹4500 earn ₹720 simple interest at 4% per year? (a) 4 years (b) 5 years (c) 3 years (d) 8 years
31. 31.The simple interest on ₹6000 for 5 years is ₹900. What is the rate per year? (a) 3% (b) 4% (c) 15% (d) 2%
32. 32.₹6500 is invested at 4% per year simple interest. What is the amount after 4 years? (a) ₹7540 (b) ₹6760 (c) ₹1040 (d) ₹7800
33. 33.What is the simple interest on ₹3000 at 9% per year for 3 years? (a) ₹270 (b) ₹3810 (c) ₹1080 (d) ₹810
34. 34.What is the simple interest on ₹3000 at 4% per year for 5 years? (a) ₹720 (b) ₹600 (c) ₹3600 (d) ₹120
35. 35.In how many years will ₹7500 earn ₹750 simple interest at 2% per year? (a) 10 years (b) 5 years (c) 4 years (d) 6 years
36. 36.In how many years will ₹6000 earn ₹960 simple interest at 8% per year? (a) 2 years (b) 1 year (c) 4 years (d) 3 years
37. 37.₹4000 is invested at 7% per year simple interest. What is the amount after 5 years? (a) ₹5400 (b) ₹5680 (c) ₹4280 (d) ₹1400
38. 38.What is the simple interest on ₹5000 at 10% per year for 4 years? (a) ₹500 (b) ₹7000 (c) ₹2500 (d) ₹2000
39. 39.The simple interest on ₹2000 for 3 years is ₹420. What is the rate per year? (a) 7% (b) 8% (c) 21% (d) 6%
40. 40.₹1000 is invested at 2% per year simple interest. What is the amount after 5 years? (a) ₹1100 (b) ₹1020 (c) ₹1120 (d) ₹100

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