Simple Interest Worksheet for Maths Olympiad

Maths Olympiad topic 16: Simple interest · Set 326 · 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.₹8500 is invested at 12% per year simple interest. What is the amount after 5 years? (a) ₹13600 (b) ₹14620 (c) ₹5100 (d) ₹9520
2. 2.₹3000 is invested at 2% per year simple interest. What is the amount after 4 years? (a) ₹3060 (b) ₹3300 (c) ₹3240 (d) ₹240
3. 3.The simple interest on ₹6500 for 5 years is ₹2275. What is the rate per year? (a) 6% (b) 35% (c) 7% (d) 8%
4. 4.What is the simple interest on ₹9500 at 9% per year for 2 years? (a) ₹11210 (b) ₹2565 (c) ₹1710 (d) ₹855
5. 5.What is the simple interest on ₹3500 at 2% per year for 2 years? (a) ₹140 (b) ₹70 (c) ₹210 (d) ₹3640
6. 6.In how many years will ₹9500 earn ₹3420 simple interest at 9% per year? (a) 8 years (b) 5 years (c) 3 years (d) 4 years
7. 7.₹1000 is invested at 4% per year simple interest. What is the amount after 3 years? (a) ₹1160 (b) ₹1120 (c) ₹1040 (d) ₹120
8. 8.What is the simple interest on ₹4000 at 2% per year for 2 years? (a) ₹80 (b) ₹240 (c) ₹4160 (d) ₹160
9. 9.In how many years will ₹3000 earn ₹1200 simple interest at 8% per year? (a) 10 years (b) 4 years (c) 6 years (d) 5 years
10. 10.What is the simple interest on ₹8500 at 6% per year for 4 years? (a) ₹2550 (b) ₹2040 (c) ₹10540 (d) ₹510
11. 11.In how many years will ₹4000 earn ₹1080 simple interest at 9% per year? (a) 3 years (b) 2 years (c) 6 years (d) 4 years
12. 12.In how many years will ₹1000 earn ₹200 simple interest at 5% per year? (a) 5 years (b) 3 years (c) 8 years (d) 4 years
13. 13.₹4500 is invested at 4% per year simple interest. What is the amount after 5 years? (a) ₹5400 (b) ₹5580 (c) ₹4680 (d) ₹900
14. 14.₹9500 is invested at 6% per year simple interest. What is the amount after 4 years? (a) ₹12350 (b) ₹11780 (c) ₹2280 (d) ₹10070
15. 15.What is the simple interest on ₹8500 at 11% per year for 3 years? (a) ₹3740 (b) ₹935 (c) ₹2805 (d) ₹11305
16. 16.What is the simple interest on ₹4000 at 7% per year for 5 years? (a) ₹1400 (b) ₹280 (c) ₹1680 (d) ₹5400
17. 17.₹7500 is invested at 12% per year simple interest. What is the amount after 4 years? (a) ₹11100 (b) ₹8400 (c) ₹12000 (d) ₹3600
18. 18.What is the simple interest on ₹10000 at 10% per year for 5 years? (a) ₹15000 (b) ₹1000 (c) ₹6000 (d) ₹5000
19. 19.What is the simple interest on ₹3500 at 8% per year for 3 years? (a) ₹280 (b) ₹1120 (c) ₹4340 (d) ₹840
20. 20.The simple interest on ₹5500 for 3 years is ₹1155. What is the rate per year? (a) 21% (b) 7% (c) 8% (d) 6%
21. 21.₹4000 is invested at 10% per year simple interest. What is the amount after 3 years? (a) ₹5200 (b) ₹4400 (c) ₹5600 (d) ₹1200
22. 22.₹4000 is invested at 10% per year simple interest. What is the amount after 5 years? (a) ₹4400 (b) ₹6000 (c) ₹6400 (d) ₹2000
23. 23.In how many years will ₹3000 earn ₹450 simple interest at 5% per year? (a) 4 years (b) 6 years (c) 2 years (d) 3 years
24. 24.The simple interest on ₹5000 for 3 years is ₹600. What is the rate per year? (a) 3% (b) 12% (c) 5% (d) 4%
25. 25.In how many years will ₹6000 earn ₹1800 simple interest at 10% per year? (a) 3 years (b) 2 years (c) 6 years (d) 4 years
26. 26.What is the simple interest on ₹7500 at 8% per year for 2 years? (a) ₹1800 (b) ₹600 (c) ₹8700 (d) ₹1200
27. 27.₹9500 is invested at 5% per year simple interest. What is the amount after 4 years? (a) ₹1900 (b) ₹11875 (c) ₹11400 (d) ₹9975
28. 28.What is the simple interest on ₹4000 at 5% per year for 2 years? (a) ₹200 (b) ₹600 (c) ₹400 (d) ₹4400
29. 29.₹6500 is invested at 6% per year simple interest. What is the amount after 2 years? (a) ₹780 (b) ₹7670 (c) ₹6890 (d) ₹7280
30. 30.₹8000 is invested at 5% per year simple interest. What is the amount after 5 years? (a) ₹2000 (b) ₹10400 (c) ₹10000 (d) ₹8400
31. 31.In how many years will ₹1000 earn ₹160 simple interest at 4% per year? (a) 8 years (b) 5 years (c) 3 years (d) 4 years
32. 32.What is the simple interest on ₹8500 at 8% per year for 3 years? (a) ₹2720 (b) ₹10540 (c) ₹2040 (d) ₹680
33. 33.What is the simple interest on ₹5000 at 12% per year for 3 years? (a) ₹600 (b) ₹2400 (c) ₹6800 (d) ₹1800
34. 34.The simple interest on ₹5000 for 3 years is ₹450. What is the rate per year? (a) 9% (b) 2% (c) 4% (d) 3%
35. 35.₹1500 is invested at 4% per year simple interest. What is the amount after 2 years? (a) ₹1680 (b) ₹1560 (c) ₹120 (d) ₹1620
36. 36.₹7500 is invested at 12% per year simple interest. What is the amount after 3 years? (a) ₹2700 (b) ₹10200 (c) ₹11100 (d) ₹8400
37. 37.The simple interest on ₹1500 for 2 years is ₹150. What is the rate per year? (a) 10% (b) 4% (c) 5% (d) 6%
38. 38.The simple interest on ₹3000 for 2 years is ₹180. What is the rate per year? (a) 6% (b) 3% (c) 2% (d) 4%
39. 39.In how many years will ₹10000 earn ₹2700 simple interest at 9% per year? (a) 3 years (b) 4 years (c) 2 years (d) 6 years
40. 40.What is the simple interest on ₹10000 at 3% per year for 2 years? (a) ₹10600 (b) ₹600 (c) ₹300 (d) ₹900

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