Simple Interest Worksheet for Maths Olympiad

Maths Olympiad topic 16: Simple interest · Set 565 · 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 ₹7000 earn ₹3150 simple interest at 9% per year? (a) 4 years (b) 5 years (c) 10 years (d) 6 years
2. 2.What is the simple interest on ₹9500 at 2% per year for 2 years? (a) ₹380 (b) ₹9880 (c) ₹570 (d) ₹190
3. 3.What is the simple interest on ₹7500 at 2% per year for 5 years? (a) ₹150 (b) ₹900 (c) ₹750 (d) ₹8250
4. 4.₹3000 is invested at 12% per year simple interest. What is the amount after 5 years? (a) ₹1800 (b) ₹3360 (c) ₹4800 (d) ₹5160
5. 5.In how many years will ₹4000 earn ₹320 simple interest at 2% per year? (a) 5 years (b) 3 years (c) 8 years (d) 4 years
6. 6.In how many years will ₹4500 earn ₹2160 simple interest at 12% per year? (a) 5 years (b) 8 years (c) 3 years (d) 4 years
7. 7.In how many years will ₹5000 earn ₹2500 simple interest at 10% per year? (a) 4 years (b) 10 years (c) 6 years (d) 5 years
8. 8.What is the simple interest on ₹4000 at 8% per year for 3 years? (a) ₹960 (b) ₹1280 (c) ₹4960 (d) ₹320
9. 9.In how many years will ₹1000 earn ₹500 simple interest at 10% per year? (a) 10 years (b) 5 years (c) 6 years (d) 4 years
10. 10.₹3500 is invested at 10% per year simple interest. What is the amount after 5 years? (a) ₹5250 (b) ₹5600 (c) ₹1750 (d) ₹3850
11. 11.In how many years will ₹7000 earn ₹1400 simple interest at 5% per year? (a) 3 years (b) 5 years (c) 8 years (d) 4 years
12. 12.₹2500 is invested at 3% per year simple interest. What is the amount after 3 years? (a) ₹2725 (b) ₹225 (c) ₹2800 (d) ₹2575
13. 13.₹7000 is invested at 5% per year simple interest. What is the amount after 5 years? (a) ₹7350 (b) ₹1750 (c) ₹8750 (d) ₹9100
14. 14.The simple interest on ₹7000 for 5 years is ₹1750. What is the rate per year? (a) 6% (b) 4% (c) 25% (d) 5%
15. 15.₹9500 is invested at 3% per year simple interest. What is the amount after 3 years? (a) ₹855 (b) ₹9785 (c) ₹10640 (d) ₹10355
16. 16.What is the simple interest on ₹2000 at 6% per year for 3 years? (a) ₹2360 (b) ₹480 (c) ₹360 (d) ₹120
17. 17.The simple interest on ₹2000 for 5 years is ₹1000. What is the rate per year? (a) 9% (b) 11% (c) 50% (d) 10%
18. 18.What is the simple interest on ₹9500 at 10% per year for 2 years? (a) ₹11400 (b) ₹950 (c) ₹1900 (d) ₹2850
19. 19.In how many years will ₹3500 earn ₹560 simple interest at 4% per year? (a) 8 years (b) 5 years (c) 4 years (d) 3 years
20. 20.₹3000 is invested at 8% per year simple interest. What is the amount after 4 years? (a) ₹3240 (b) ₹960 (c) ₹4200 (d) ₹3960
21. 21.In how many years will ₹7500 earn ₹675 simple interest at 3% per year? (a) 2 years (b) 6 years (c) 3 years (d) 4 years
22. 22.₹3500 is invested at 3% per year simple interest. What is the amount after 2 years? (a) ₹3710 (b) ₹210 (c) ₹3605 (d) ₹3815
23. 23.₹5500 is invested at 11% per year simple interest. What is the amount after 5 years? (a) ₹6105 (b) ₹8525 (c) ₹9130 (d) ₹3025
24. 24.The simple interest on ₹3500 for 3 years is ₹1260. What is the rate per year? (a) 36% (b) 13% (c) 11% (d) 12%
25. 25.The simple interest on ₹8000 for 3 years is ₹960. What is the rate per year? (a) 5% (b) 12% (c) 3% (d) 4%
26. 26.₹4500 is invested at 11% per year simple interest. What is the amount after 5 years? (a) ₹6975 (b) ₹4995 (c) ₹2475 (d) ₹7470
27. 27.₹1500 is invested at 4% per year simple interest. What is the amount after 2 years? (a) ₹120 (b) ₹1680 (c) ₹1620 (d) ₹1560
28. 28.In how many years will ₹1500 earn ₹300 simple interest at 10% per year? (a) 3 years (b) 4 years (c) 1 year (d) 2 years
29. 29.The simple interest on ₹1500 for 5 years is ₹375. What is the rate per year? (a) 6% (b) 5% (c) 25% (d) 4%
30. 30.The simple interest on ₹2500 for 4 years is ₹800. What is the rate per year? (a) 8% (b) 32% (c) 7% (d) 9%
31. 31.The simple interest on ₹7000 for 5 years is ₹1050. What is the rate per year? (a) 2% (b) 3% (c) 15% (d) 4%
32. 32.₹1000 is invested at 5% per year simple interest. What is the amount after 3 years? (a) ₹150 (b) ₹1150 (c) ₹1050 (d) ₹1200
33. 33.The simple interest on ₹8500 for 3 years is ₹2550. What is the rate per year? (a) 9% (b) 10% (c) 30% (d) 11%
34. 34.What is the simple interest on ₹3000 at 3% per year for 3 years? (a) ₹90 (b) ₹3270 (c) ₹360 (d) ₹270
35. 35.The simple interest on ₹8000 for 3 years is ₹1440. What is the rate per year? (a) 7% (b) 5% (c) 6% (d) 18%
36. 36.₹6000 is invested at 2% per year simple interest. What is the amount after 3 years? (a) ₹6120 (b) ₹6360 (c) ₹360 (d) ₹6480
37. 37.The simple interest on ₹6500 for 4 years is ₹2600. What is the rate per year? (a) 40% (b) 11% (c) 9% (d) 10%
38. 38.In how many years will ₹6500 earn ₹2925 simple interest at 9% per year? (a) 5 years (b) 10 years (c) 6 years (d) 4 years
39. 39.The simple interest on ₹5000 for 4 years is ₹1600. What is the rate per year? (a) 7% (b) 9% (c) 8% (d) 32%
40. 40.What is the simple interest on ₹10000 at 4% per year for 2 years? (a) ₹1200 (b) ₹400 (c) ₹800 (d) ₹10800

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