Simple Interest Worksheet for Maths Olympiad

Maths Olympiad topic 16: Simple interest · Set 691 · 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 ₹8000 earn ₹640 simple interest at 4% per year? (a) 4 years (b) 2 years (c) 1 year (d) 3 years
2. 2.The simple interest on ₹1500 for 4 years is ₹600. What is the rate per year? (a) 10% (b) 40% (c) 11% (d) 9%
3. 3.The simple interest on ₹2000 for 3 years is ₹300. What is the rate per year? (a) 15% (b) 4% (c) 5% (d) 6%
4. 4.The simple interest on ₹9000 for 2 years is ₹1080. What is the rate per year? (a) 6% (b) 12% (c) 5% (d) 7%
5. 5.The simple interest on ₹9500 for 4 years is ₹4560. What is the rate per year? (a) 12% (b) 11% (c) 13% (d) 48%
6. 6.What is the simple interest on ₹9000 at 4% per year for 5 years? (a) ₹360 (b) ₹1800 (c) ₹10800 (d) ₹2160
7. 7.In how many years will ₹8500 earn ₹5100 simple interest at 12% per year? (a) 4 years (b) 5 years (c) 6 years (d) 10 years
8. 8.What is the simple interest on ₹7000 at 3% per year for 2 years? (a) ₹630 (b) ₹7420 (c) ₹210 (d) ₹420
9. 9.What is the simple interest on ₹2500 at 6% per year for 3 years? (a) ₹600 (b) ₹450 (c) ₹2950 (d) ₹150
10. 10.In how many years will ₹6500 earn ₹520 simple interest at 2% per year? (a) 5 years (b) 8 years (c) 4 years (d) 3 years
11. 11.₹8000 is invested at 9% per year simple interest. What is the amount after 5 years? (a) ₹11600 (b) ₹8720 (c) ₹3600 (d) ₹12320
12. 12.What is the simple interest on ₹4500 at 4% per year for 2 years? (a) ₹540 (b) ₹4860 (c) ₹360 (d) ₹180
13. 13.The simple interest on ₹3000 for 2 years is ₹480. What is the rate per year? (a) 7% (b) 9% (c) 8% (d) 16%
14. 14.₹8000 is invested at 3% per year simple interest. What is the amount after 4 years? (a) ₹8960 (b) ₹9200 (c) ₹960 (d) ₹8240
15. 15.What is the simple interest on ₹8000 at 3% per year for 2 years? (a) ₹480 (b) ₹240 (c) ₹720 (d) ₹8480
16. 16.What is the simple interest on ₹1500 at 3% per year for 2 years? (a) ₹1590 (b) ₹135 (c) ₹90 (d) ₹45
17. 17.₹2500 is invested at 11% per year simple interest. What is the amount after 5 years? (a) ₹2775 (b) ₹1375 (c) ₹4150 (d) ₹3875
18. 18.The simple interest on ₹7500 for 5 years is ₹750. What is the rate per year? (a) 10% (b) 1% (c) 3% (d) 2%
19. 19.In how many years will ₹8500 earn ₹2125 simple interest at 5% per year? (a) 5 years (b) 10 years (c) 4 years (d) 6 years
20. 20.What is the simple interest on ₹4500 at 10% per year for 5 years? (a) ₹2250 (b) ₹2700 (c) ₹450 (d) ₹6750
21. 21.The simple interest on ₹8000 for 5 years is ₹2800. What is the rate per year? (a) 6% (b) 8% (c) 7% (d) 35%
22. 22.₹8500 is invested at 8% per year simple interest. What is the amount after 4 years? (a) ₹9180 (b) ₹11900 (c) ₹2720 (d) ₹11220
23. 23.In how many years will ₹5500 earn ₹550 simple interest at 5% per year? (a) 4 years (b) 1 year (c) 2 years (d) 3 years
24. 24.₹7000 is invested at 9% per year simple interest. What is the amount after 3 years? (a) ₹1890 (b) ₹7630 (c) ₹8890 (d) ₹9520
25. 25.₹1000 is invested at 3% per year simple interest. What is the amount after 5 years? (a) ₹1180 (b) ₹1030 (c) ₹1150 (d) ₹150
26. 26.In how many years will ₹3000 earn ₹480 simple interest at 4% per year? (a) 3 years (b) 8 years (c) 5 years (d) 4 years
27. 27.The simple interest on ₹6500 for 3 years is ₹390. What is the rate per year? (a) 2% (b) 6% (c) 1% (d) 3%
28. 28.₹6500 is invested at 7% per year simple interest. What is the amount after 5 years? (a) ₹9230 (b) ₹6955 (c) ₹2275 (d) ₹8775
29. 29.The simple interest on ₹9000 for 2 years is ₹720. What is the rate per year? (a) 3% (b) 8% (c) 4% (d) 5%
30. 30.The simple interest on ₹8500 for 2 years is ₹510. What is the rate per year? (a) 3% (b) 6% (c) 2% (d) 4%
31. 31.What is the simple interest on ₹7000 at 11% per year for 5 years? (a) ₹10850 (b) ₹770 (c) ₹3850 (d) ₹4620
32. 32.The simple interest on ₹6000 for 5 years is ₹1800. What is the rate per year? (a) 7% (b) 6% (c) 5% (d) 30%
33. 33.What is the simple interest on ₹2000 at 3% per year for 2 years? (a) ₹2120 (b) ₹180 (c) ₹60 (d) ₹120
34. 34.₹5500 is invested at 12% per year simple interest. What is the amount after 5 years? (a) ₹3300 (b) ₹8800 (c) ₹6160 (d) ₹9460
35. 35.What is the simple interest on ₹10000 at 4% per year for 5 years? (a) ₹12000 (b) ₹2400 (c) ₹2000 (d) ₹400
36. 36.What is the simple interest on ₹3500 at 5% per year for 5 years? (a) ₹175 (b) ₹1050 (c) ₹875 (d) ₹4375
37. 37.₹7500 is invested at 12% per year simple interest. What is the amount after 5 years? (a) ₹12900 (b) ₹4500 (c) ₹12000 (d) ₹8400
38. 38.What is the simple interest on ₹2500 at 2% per year for 4 years? (a) ₹2700 (b) ₹250 (c) ₹50 (d) ₹200
39. 39.What is the simple interest on ₹10000 at 12% per year for 3 years? (a) ₹3600 (b) ₹13600 (c) ₹4800 (d) ₹1200
40. 40.In how many years will ₹1500 earn ₹240 simple interest at 4% per year? (a) 5 years (b) 3 years (c) 8 years (d) 4 years

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