Simple Interest Worksheet for Maths Olympiad

Maths Olympiad topic 16: Simple interest · Set 83 · 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 ₹4000 earn ₹2000 simple interest at 10% per year? (a) 6 years (b) 10 years (c) 5 years (d) 4 years
2. 2.₹6500 is invested at 10% per year simple interest. What is the amount after 2 years? (a) ₹1300 (b) ₹7150 (c) ₹7800 (d) ₹8450
3. 3.₹8000 is invested at 4% per year simple interest. What is the amount after 4 years? (a) ₹1280 (b) ₹8320 (c) ₹9600 (d) ₹9280
4. 4.What is the simple interest on ₹5000 at 8% per year for 4 years? (a) ₹2000 (b) ₹6600 (c) ₹1600 (d) ₹400
5. 5.₹9000 is invested at 8% per year simple interest. What is the amount after 2 years? (a) ₹1440 (b) ₹9720 (c) ₹10440 (d) ₹11160
6. 6.₹7500 is invested at 4% per year simple interest. What is the amount after 4 years? (a) ₹9000 (b) ₹8700 (c) ₹1200 (d) ₹7800
7. 7.₹2500 is invested at 5% per year simple interest. What is the amount after 5 years? (a) ₹2625 (b) ₹3250 (c) ₹3125 (d) ₹625
8. 8.₹2500 is invested at 7% per year simple interest. What is the amount after 3 years? (a) ₹3200 (b) ₹525 (c) ₹2675 (d) ₹3025
9. 9.The simple interest on ₹9500 for 5 years is ₹1900. What is the rate per year? (a) 4% (b) 3% (c) 5% (d) 20%
10. 10.₹5000 is invested at 12% per year simple interest. What is the amount after 2 years? (a) ₹1200 (b) ₹6800 (c) ₹5600 (d) ₹6200
11. 11.In how many years will ₹7500 earn ₹1500 simple interest at 10% per year? (a) 4 years (b) 3 years (c) 1 year (d) 2 years
12. 12.What is the simple interest on ₹8500 at 2% per year for 3 years? (a) ₹9010 (b) ₹680 (c) ₹170 (d) ₹510
13. 13.₹7000 is invested at 9% per year simple interest. What is the amount after 4 years? (a) ₹10150 (b) ₹9520 (c) ₹2520 (d) ₹7630
14. 14.What is the simple interest on ₹2000 at 12% per year for 4 years? (a) ₹2960 (b) ₹240 (c) ₹1200 (d) ₹960
15. 15.What is the simple interest on ₹7500 at 3% per year for 3 years? (a) ₹8175 (b) ₹225 (c) ₹900 (d) ₹675
16. 16.In how many years will ₹2000 earn ₹400 simple interest at 10% per year? (a) 1 year (b) 2 years (c) 3 years (d) 4 years
17. 17.₹1000 is invested at 8% per year simple interest. What is the amount after 2 years? (a) ₹1080 (b) ₹1240 (c) ₹1160 (d) ₹160
18. 18.The simple interest on ₹1500 for 5 years is ₹375. What is the rate per year? (a) 5% (b) 6% (c) 25% (d) 4%
19. 19.The simple interest on ₹9500 for 5 years is ₹3800. What is the rate per year? (a) 7% (b) 9% (c) 40% (d) 8%
20. 20.What is the simple interest on ₹3000 at 4% per year for 2 years? (a) ₹3240 (b) ₹360 (c) ₹240 (d) ₹120
21. 21.The simple interest on ₹7000 for 2 years is ₹420. What is the rate per year? (a) 6% (b) 3% (c) 4% (d) 2%
22. 22.In how many years will ₹6000 earn ₹1440 simple interest at 6% per year? (a) 5 years (b) 4 years (c) 3 years (d) 8 years
23. 23.In how many years will ₹6500 earn ₹3575 simple interest at 11% per year? (a) 6 years (b) 10 years (c) 5 years (d) 4 years
24. 24.What is the simple interest on ₹5500 at 12% per year for 3 years? (a) ₹660 (b) ₹1980 (c) ₹7480 (d) ₹2640
25. 25.₹4500 is invested at 9% per year simple interest. What is the amount after 2 years? (a) ₹4905 (b) ₹810 (c) ₹5715 (d) ₹5310
26. 26.₹8000 is invested at 2% per year simple interest. What is the amount after 2 years? (a) ₹8320 (b) ₹8480 (c) ₹320 (d) ₹8160
27. 27.The simple interest on ₹10000 for 3 years is ₹900. What is the rate per year? (a) 3% (b) 4% (c) 9% (d) 2%
28. 28.What is the simple interest on ₹7000 at 10% per year for 5 years? (a) ₹10500 (b) ₹4200 (c) ₹3500 (d) ₹700
29. 29.The simple interest on ₹2500 for 5 years is ₹250. What is the rate per year? (a) 3% (b) 1% (c) 10% (d) 2%
30. 30.₹4500 is invested at 7% per year simple interest. What is the amount after 2 years? (a) ₹5445 (b) ₹4815 (c) ₹630 (d) ₹5130
31. 31.What is the simple interest on ₹9000 at 3% per year for 4 years? (a) ₹270 (b) ₹1080 (c) ₹1350 (d) ₹10080
32. 32.In how many years will ₹5000 earn ₹450 simple interest at 3% per year? (a) 6 years (b) 3 years (c) 2 years (d) 4 years
33. 33.What is the simple interest on ₹4000 at 8% per year for 3 years? (a) ₹320 (b) ₹4960 (c) ₹960 (d) ₹1280
34. 34.What is the simple interest on ₹4500 at 4% per year for 5 years? (a) ₹1080 (b) ₹900 (c) ₹180 (d) ₹5400
35. 35.The simple interest on ₹9500 for 5 years is ₹5225. What is the rate per year? (a) 55% (b) 12% (c) 11% (d) 10%
36. 36.The simple interest on ₹5500 for 4 years is ₹1100. What is the rate per year? (a) 6% (b) 4% (c) 20% (d) 5%
37. 37.The simple interest on ₹2000 for 5 years is ₹800. What is the rate per year? (a) 9% (b) 7% (c) 8% (d) 40%
38. 38.What is the simple interest on ₹9000 at 9% per year for 3 years? (a) ₹3240 (b) ₹11430 (c) ₹810 (d) ₹2430
39. 39.What is the simple interest on ₹2500 at 3% per year for 4 years? (a) ₹300 (b) ₹75 (c) ₹2800 (d) ₹375
40. 40.In how many years will ₹2000 earn ₹420 simple interest at 7% per year? (a) 2 years (b) 4 years (c) 6 years (d) 3 years

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