Simple Interest Worksheet for Maths Olympiad

Maths Olympiad topic 16: Simple interest · Set 534 · 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 ₹360 simple interest at 4% per year? (a) 2 years (b) 6 years (c) 3 years (d) 4 years
2. 2.In how many years will ₹4500 earn ₹450 simple interest at 2% per year? (a) 6 years (b) 5 years (c) 10 years (d) 4 years
3. 3.₹1500 is invested at 5% per year simple interest. What is the amount after 2 years? (a) ₹1725 (b) ₹1575 (c) ₹1650 (d) ₹150
4. 4.₹3000 is invested at 4% per year simple interest. What is the amount after 4 years? (a) ₹3600 (b) ₹480 (c) ₹3480 (d) ₹3120
5. 5.In how many years will ₹2500 earn ₹400 simple interest at 4% per year? (a) 3 years (b) 5 years (c) 8 years (d) 4 years
6. 6.What is the simple interest on ₹8500 at 4% per year for 4 years? (a) ₹340 (b) ₹1360 (c) ₹9860 (d) ₹1700
7. 7.In how many years will ₹9500 earn ₹2280 simple interest at 8% per year? (a) 6 years (b) 3 years (c) 4 years (d) 2 years
8. 8.The simple interest on ₹4000 for 5 years is ₹1200. What is the rate per year? (a) 5% (b) 30% (c) 7% (d) 6%
9. 9.In how many years will ₹8000 earn ₹2400 simple interest at 6% per year? (a) 10 years (b) 6 years (c) 5 years (d) 4 years
10. 10.What is the simple interest on ₹8000 at 5% per year for 2 years? (a) ₹400 (b) ₹8800 (c) ₹800 (d) ₹1200
11. 11.What is the simple interest on ₹8500 at 9% per year for 5 years? (a) ₹765 (b) ₹12325 (c) ₹3825 (d) ₹4590
12. 12.What is the simple interest on ₹1000 at 10% per year for 5 years? (a) ₹600 (b) ₹100 (c) ₹500 (d) ₹1500
13. 13.What is the simple interest on ₹5000 at 10% per year for 5 years? (a) ₹500 (b) ₹7500 (c) ₹2500 (d) ₹3000
14. 14.What is the simple interest on ₹8500 at 6% per year for 2 years? (a) ₹510 (b) ₹1020 (c) ₹9520 (d) ₹1530
15. 15.₹3500 is invested at 3% per year simple interest. What is the amount after 2 years? (a) ₹3605 (b) ₹210 (c) ₹3815 (d) ₹3710
16. 16.₹4500 is invested at 5% per year simple interest. What is the amount after 5 years? (a) ₹5850 (b) ₹4725 (c) ₹5625 (d) ₹1125
17. 17.In how many years will ₹9500 earn ₹1330 simple interest at 7% per year? (a) 3 years (b) 1 year (c) 4 years (d) 2 years
18. 18.The simple interest on ₹1500 for 5 years is ₹450. What is the rate per year? (a) 6% (b) 30% (c) 5% (d) 7%
19. 19.In how many years will ₹7000 earn ₹3150 simple interest at 9% per year? (a) 6 years (b) 4 years (c) 10 years (d) 5 years
20. 20.In how many years will ₹3000 earn ₹1800 simple interest at 12% per year? (a) 6 years (b) 5 years (c) 10 years (d) 4 years
21. 21.₹1500 is invested at 9% per year simple interest. What is the amount after 2 years? (a) ₹1770 (b) ₹1905 (c) ₹1635 (d) ₹270
22. 22.The simple interest on ₹7500 for 4 years is ₹1800. What is the rate per year? (a) 7% (b) 5% (c) 24% (d) 6%
23. 23.What is the simple interest on ₹9000 at 5% per year for 4 years? (a) ₹10800 (b) ₹2250 (c) ₹450 (d) ₹1800
24. 24.₹1000 is invested at 2% per year simple interest. What is the amount after 5 years? (a) ₹100 (b) ₹1020 (c) ₹1100 (d) ₹1120
25. 25.What is the simple interest on ₹8000 at 8% per year for 5 years? (a) ₹3840 (b) ₹640 (c) ₹3200 (d) ₹11200
26. 26.The simple interest on ₹10000 for 5 years is ₹3500. What is the rate per year? (a) 6% (b) 7% (c) 8% (d) 35%
27. 27.In how many years will ₹2000 earn ₹160 simple interest at 4% per year? (a) 2 years (b) 3 years (c) 4 years (d) 1 year
28. 28.₹2500 is invested at 9% per year simple interest. What is the amount after 2 years? (a) ₹450 (b) ₹2950 (c) ₹3175 (d) ₹2725
29. 29.The simple interest on ₹3000 for 4 years is ₹960. What is the rate per year? (a) 32% (b) 8% (c) 9% (d) 7%
30. 30.In how many years will ₹3500 earn ₹980 simple interest at 7% per year? (a) 3 years (b) 8 years (c) 5 years (d) 4 years
31. 31.The simple interest on ₹5500 for 3 years is ₹1980. What is the rate per year? (a) 12% (b) 13% (c) 11% (d) 36%
32. 32.In how many years will ₹2000 earn ₹320 simple interest at 8% per year? (a) 1 year (b) 4 years (c) 3 years (d) 2 years
33. 33.In how many years will ₹1500 earn ₹450 simple interest at 6% per year? (a) 4 years (b) 6 years (c) 5 years (d) 10 years
34. 34.In how many years will ₹3000 earn ₹600 simple interest at 4% per year? (a) 5 years (b) 4 years (c) 6 years (d) 10 years
35. 35.The simple interest on ₹6500 for 3 years is ₹1170. What is the rate per year? (a) 6% (b) 7% (c) 18% (d) 5%
36. 36.The simple interest on ₹3500 for 4 years is ₹420. What is the rate per year? (a) 2% (b) 3% (c) 12% (d) 4%
37. 37.In how many years will ₹8500 earn ₹4250 simple interest at 10% per year? (a) 6 years (b) 10 years (c) 5 years (d) 4 years
38. 38.What is the simple interest on ₹8000 at 5% per year for 5 years? (a) ₹2400 (b) ₹400 (c) ₹2000 (d) ₹10000
39. 39.What is the simple interest on ₹2000 at 10% per year for 2 years? (a) ₹2400 (b) ₹400 (c) ₹200 (d) ₹600
40. 40.₹7000 is invested at 8% per year simple interest. What is the amount after 2 years? (a) ₹8680 (b) ₹1120 (c) ₹7560 (d) ₹8120

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