Simple Interest Worksheet for Maths Olympiad

Maths Olympiad topic 16: Simple interest · Set 794 · 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 ₹1500 earn ₹450 simple interest at 10% per year? (a) 4 years (b) 6 years (c) 3 years (d) 2 years
2. 2.The simple interest on ₹9000 for 5 years is ₹4500. What is the rate per year? (a) 50% (b) 11% (c) 10% (d) 9%
3. 3.The simple interest on ₹6500 for 5 years is ₹2925. What is the rate per year? (a) 10% (b) 45% (c) 8% (d) 9%
4. 4.In how many years will ₹7500 earn ₹450 simple interest at 3% per year? (a) 2 years (b) 1 year (c) 3 years (d) 4 years
5. 5.The simple interest on ₹2500 for 2 years is ₹550. What is the rate per year? (a) 22% (b) 11% (c) 12% (d) 10%
6. 6.The simple interest on ₹1000 for 2 years is ₹140. What is the rate per year? (a) 14% (b) 8% (c) 7% (d) 6%
7. 7.What is the simple interest on ₹8000 at 7% per year for 4 years? (a) ₹2240 (b) ₹2800 (c) ₹560 (d) ₹10240
8. 8.₹6500 is invested at 10% per year simple interest. What is the amount after 2 years? (a) ₹7150 (b) ₹8450 (c) ₹7800 (d) ₹1300
9. 9.What is the simple interest on ₹6000 at 11% per year for 2 years? (a) ₹7320 (b) ₹1980 (c) ₹1320 (d) ₹660
10. 10.The simple interest on ₹1500 for 5 years is ₹450. What is the rate per year? (a) 30% (b) 5% (c) 7% (d) 6%
11. 11.The simple interest on ₹1500 for 4 years is ₹360. What is the rate per year? (a) 7% (b) 5% (c) 24% (d) 6%
12. 12.In how many years will ₹5500 earn ₹3300 simple interest at 12% per year? (a) 6 years (b) 4 years (c) 10 years (d) 5 years
13. 13.The simple interest on ₹1000 for 2 years is ₹100. What is the rate per year? (a) 5% (b) 6% (c) 10% (d) 4%
14. 14.In how many years will ₹7000 earn ₹1260 simple interest at 9% per year? (a) 4 years (b) 1 year (c) 3 years (d) 2 years
15. 15.The simple interest on ₹4500 for 5 years is ₹2250. What is the rate per year? (a) 11% (b) 50% (c) 10% (d) 9%
16. 16.₹1500 is invested at 11% per year simple interest. What is the amount after 2 years? (a) ₹1665 (b) ₹330 (c) ₹1995 (d) ₹1830
17. 17.What is the simple interest on ₹6000 at 5% per year for 2 years? (a) ₹6600 (b) ₹600 (c) ₹300 (d) ₹900
18. 18.What is the simple interest on ₹7000 at 6% per year for 4 years? (a) ₹420 (b) ₹8680 (c) ₹2100 (d) ₹1680
19. 19.The simple interest on ₹8500 for 3 years is ₹765. What is the rate per year? (a) 9% (b) 3% (c) 2% (d) 4%
20. 20.₹1000 is invested at 7% per year simple interest. What is the amount after 5 years? (a) ₹1420 (b) ₹1350 (c) ₹350 (d) ₹1070
21. 21.What is the simple interest on ₹4500 at 7% per year for 5 years? (a) ₹1575 (b) ₹6075 (c) ₹315 (d) ₹1890
22. 22.In how many years will ₹2500 earn ₹900 simple interest at 12% per year? (a) 3 years (b) 2 years (c) 4 years (d) 6 years
23. 23.₹5000 is invested at 11% per year simple interest. What is the amount after 4 years? (a) ₹7200 (b) ₹2200 (c) ₹7750 (d) ₹5550
24. 24.₹1500 is invested at 10% per year simple interest. What is the amount after 3 years? (a) ₹1650 (b) ₹1950 (c) ₹450 (d) ₹2100
25. 25.What is the simple interest on ₹1500 at 2% per year for 4 years? (a) ₹120 (b) ₹30 (c) ₹1620 (d) ₹150
26. 26.In how many years will ₹1500 earn ₹600 simple interest at 10% per year? (a) 4 years (b) 3 years (c) 8 years (d) 5 years
27. 27.In how many years will ₹3000 earn ₹600 simple interest at 4% per year? (a) 6 years (b) 10 years (c) 4 years (d) 5 years
28. 28.The simple interest on ₹3500 for 5 years is ₹350. What is the rate per year? (a) 1% (b) 2% (c) 3% (d) 10%
29. 29.₹8500 is invested at 7% per year simple interest. What is the amount after 2 years? (a) ₹9690 (b) ₹10285 (c) ₹1190 (d) ₹9095
30. 30.The simple interest on ₹8500 for 4 years is ₹2040. What is the rate per year? (a) 5% (b) 24% (c) 6% (d) 7%
31. 31.The simple interest on ₹5500 for 4 years is ₹660. What is the rate per year? (a) 3% (b) 4% (c) 2% (d) 12%
32. 32.What is the simple interest on ₹2000 at 4% per year for 5 years? (a) ₹2400 (b) ₹480 (c) ₹80 (d) ₹400
33. 33.In how many years will ₹1500 earn ₹750 simple interest at 10% per year? (a) 6 years (b) 10 years (c) 4 years (d) 5 years
34. 34.In how many years will ₹4500 earn ₹540 simple interest at 4% per year? (a) 4 years (b) 2 years (c) 6 years (d) 3 years
35. 35.What is the simple interest on ₹1000 at 6% per year for 4 years? (a) ₹240 (b) ₹1240 (c) ₹60 (d) ₹300
36. 36.What is the simple interest on ₹2500 at 7% per year for 2 years? (a) ₹350 (b) ₹175 (c) ₹2850 (d) ₹525
37. 37.What is the simple interest on ₹5000 at 10% per year for 2 years? (a) ₹1500 (b) ₹6000 (c) ₹500 (d) ₹1000
38. 38.In how many years will ₹4500 earn ₹1485 simple interest at 11% per year? (a) 3 years (b) 2 years (c) 4 years (d) 6 years
39. 39.₹6000 is invested at 4% per year simple interest. What is the amount after 5 years? (a) ₹6240 (b) ₹1200 (c) ₹7440 (d) ₹7200
40. 40.In how many years will ₹7500 earn ₹1200 simple interest at 4% per year? (a) 8 years (b) 4 years (c) 5 years (d) 3 years

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