Simple Interest Worksheet for Maths Olympiad

Maths Olympiad topic 16: Simple interest · Set 244 · 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 ₹2500 earn ₹825 simple interest at 11% per year? (a) 4 years (b) 3 years (c) 2 years (d) 6 years
2. 2.What is the simple interest on ₹6500 at 2% per year for 2 years? (a) ₹130 (b) ₹6760 (c) ₹260 (d) ₹390
3. 3.The simple interest on ₹6500 for 2 years is ₹780. What is the rate per year? (a) 12% (b) 5% (c) 7% (d) 6%
4. 4.The simple interest on ₹7500 for 2 years is ₹750. What is the rate per year? (a) 6% (b) 4% (c) 10% (d) 5%
5. 5.₹1000 is invested at 11% per year simple interest. What is the amount after 5 years? (a) ₹550 (b) ₹1110 (c) ₹1550 (d) ₹1660
6. 6.The simple interest on ₹6000 for 4 years is ₹480. What is the rate per year? (a) 1% (b) 3% (c) 8% (d) 2%
7. 7.In how many years will ₹5500 earn ₹440 simple interest at 4% per year? (a) 1 year (b) 4 years (c) 2 years (d) 3 years
8. 8.₹6000 is invested at 3% per year simple interest. What is the amount after 5 years? (a) ₹6900 (b) ₹900 (c) ₹7080 (d) ₹6180
9. 9.In how many years will ₹4500 earn ₹450 simple interest at 5% per year? (a) 2 years (b) 1 year (c) 4 years (d) 3 years
10. 10.₹7000 is invested at 4% per year simple interest. What is the amount after 4 years? (a) ₹1120 (b) ₹7280 (c) ₹8120 (d) ₹8400
11. 11.₹3500 is invested at 8% per year simple interest. What is the amount after 2 years? (a) ₹3780 (b) ₹4340 (c) ₹560 (d) ₹4060
12. 12.What is the simple interest on ₹4000 at 12% per year for 3 years? (a) ₹1440 (b) ₹480 (c) ₹1920 (d) ₹5440
13. 13.In how many years will ₹1000 earn ₹120 simple interest at 6% per year? (a) 3 years (b) 1 year (c) 4 years (d) 2 years
14. 14.₹4000 is invested at 10% per year simple interest. What is the amount after 2 years? (a) ₹4400 (b) ₹5200 (c) ₹800 (d) ₹4800
15. 15.What is the simple interest on ₹4000 at 2% per year for 3 years? (a) ₹4240 (b) ₹320 (c) ₹80 (d) ₹240
16. 16.The simple interest on ₹1000 for 3 years is ₹240. What is the rate per year? (a) 7% (b) 8% (c) 9% (d) 24%
17. 17.What is the simple interest on ₹2500 at 3% per year for 2 years? (a) ₹75 (b) ₹150 (c) ₹2650 (d) ₹225
18. 18.What is the simple interest on ₹7000 at 10% per year for 2 years? (a) ₹1400 (b) ₹8400 (c) ₹2100 (d) ₹700
19. 19.In how many years will ₹5500 earn ₹1210 simple interest at 11% per year? (a) 3 years (b) 4 years (c) 2 years (d) 1 year
20. 20.₹8000 is invested at 12% per year simple interest. What is the amount after 4 years? (a) ₹12800 (b) ₹8960 (c) ₹3840 (d) ₹11840
21. 21.₹8000 is invested at 8% per year simple interest. What is the amount after 3 years? (a) ₹8640 (b) ₹1920 (c) ₹10560 (d) ₹9920
22. 22.₹6000 is invested at 7% per year simple interest. What is the amount after 2 years? (a) ₹840 (b) ₹7260 (c) ₹6840 (d) ₹6420
23. 23.What is the simple interest on ₹7500 at 3% per year for 2 years? (a) ₹675 (b) ₹225 (c) ₹450 (d) ₹7950
24. 24.The simple interest on ₹1500 for 5 years is ₹525. What is the rate per year? (a) 8% (b) 35% (c) 6% (d) 7%
25. 25.What is the simple interest on ₹2000 at 11% per year for 4 years? (a) ₹220 (b) ₹2880 (c) ₹1100 (d) ₹880
26. 26.The simple interest on ₹1000 for 5 years is ₹500. What is the rate per year? (a) 50% (b) 11% (c) 9% (d) 10%
27. 27.In how many years will ₹8000 earn ₹1280 simple interest at 4% per year? (a) 3 years (b) 5 years (c) 8 years (d) 4 years
28. 28.₹7000 is invested at 10% per year simple interest. What is the amount after 5 years? (a) ₹7700 (b) ₹11200 (c) ₹10500 (d) ₹3500
29. 29.In how many years will ₹5000 earn ₹3000 simple interest at 12% per year? (a) 10 years (b) 6 years (c) 4 years (d) 5 years
30. 30.What is the simple interest on ₹2500 at 11% per year for 3 years? (a) ₹275 (b) ₹1100 (c) ₹3325 (d) ₹825
31. 31.What is the simple interest on ₹3000 at 10% per year for 5 years? (a) ₹4500 (b) ₹1800 (c) ₹1500 (d) ₹300
32. 32.₹4500 is invested at 11% per year simple interest. What is the amount after 4 years? (a) ₹6975 (b) ₹1980 (c) ₹6480 (d) ₹4995
33. 33.In how many years will ₹3500 earn ₹420 simple interest at 4% per year? (a) 3 years (b) 6 years (c) 2 years (d) 4 years
34. 34.The simple interest on ₹9000 for 5 years is ₹4050. What is the rate per year? (a) 8% (b) 9% (c) 45% (d) 10%
35. 35.What is the simple interest on ₹9500 at 10% per year for 5 years? (a) ₹14250 (b) ₹950 (c) ₹5700 (d) ₹4750
36. 36.₹1000 is invested at 5% per year simple interest. What is the amount after 2 years? (a) ₹1150 (b) ₹100 (c) ₹1050 (d) ₹1100
37. 37.The simple interest on ₹3000 for 3 years is ₹360. What is the rate per year? (a) 4% (b) 12% (c) 3% (d) 5%
38. 38.What is the simple interest on ₹10000 at 5% per year for 3 years? (a) ₹500 (b) ₹2000 (c) ₹11500 (d) ₹1500
39. 39.The simple interest on ₹2500 for 5 years is ₹1250. What is the rate per year? (a) 50% (b) 11% (c) 10% (d) 9%
40. 40.The simple interest on ₹6500 for 2 years is ₹260. What is the rate per year? (a) 4% (b) 2% (c) 1% (d) 3%

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