Simple Interest Worksheet for Maths Olympiad

Maths Olympiad topic 16: Simple interest · Set 497 · 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.₹9500 is invested at 3% per year simple interest. What is the amount after 2 years? (a) ₹570 (b) ₹10070 (c) ₹9785 (d) ₹10355
2. 2.What is the simple interest on ₹6000 at 8% per year for 2 years? (a) ₹6960 (b) ₹1440 (c) ₹960 (d) ₹480
3. 3.What is the simple interest on ₹1500 at 11% per year for 4 years? (a) ₹165 (b) ₹2160 (c) ₹825 (d) ₹660
4. 4.In how many years will ₹9500 earn ₹3325 simple interest at 7% per year? (a) 4 years (b) 6 years (c) 10 years (d) 5 years
5. 5.₹7000 is invested at 11% per year simple interest. What is the amount after 5 years? (a) ₹3850 (b) ₹7770 (c) ₹11620 (d) ₹10850
6. 6.₹1500 is invested at 3% per year simple interest. What is the amount after 3 years? (a) ₹135 (b) ₹1635 (c) ₹1545 (d) ₹1680
7. 7.In how many years will ₹10000 earn ₹2700 simple interest at 9% per year? (a) 4 years (b) 2 years (c) 3 years (d) 6 years
8. 8.What is the simple interest on ₹6000 at 12% per year for 2 years? (a) ₹7440 (b) ₹720 (c) ₹1440 (d) ₹2160
9. 9.In how many years will ₹8500 earn ₹1700 simple interest at 10% per year? (a) 1 year (b) 4 years (c) 3 years (d) 2 years
10. 10.₹8000 is invested at 6% per year simple interest. What is the amount after 4 years? (a) ₹10400 (b) ₹9920 (c) ₹8480 (d) ₹1920
11. 11.The simple interest on ₹3000 for 4 years is ₹240. What is the rate per year? (a) 1% (b) 8% (c) 3% (d) 2%
12. 12.₹7000 is invested at 8% per year simple interest. What is the amount after 2 years? (a) ₹1120 (b) ₹8680 (c) ₹7560 (d) ₹8120
13. 13.What is the simple interest on ₹1500 at 5% per year for 3 years? (a) ₹75 (b) ₹225 (c) ₹300 (d) ₹1725
14. 14.₹10000 is invested at 5% per year simple interest. What is the amount after 5 years? (a) ₹2500 (b) ₹13000 (c) ₹12500 (d) ₹10500
15. 15.In how many years will ₹8500 earn ₹2550 simple interest at 10% per year? (a) 2 years (b) 3 years (c) 6 years (d) 4 years
16. 16.₹8000 is invested at 10% per year simple interest. What is the amount after 2 years? (a) ₹8800 (b) ₹1600 (c) ₹9600 (d) ₹10400
17. 17.The simple interest on ₹3500 for 3 years is ₹945. What is the rate per year? (a) 8% (b) 10% (c) 9% (d) 27%
18. 18.₹3000 is invested at 5% per year simple interest. What is the amount after 5 years? (a) ₹750 (b) ₹3150 (c) ₹3900 (d) ₹3750
19. 19.What is the simple interest on ₹8000 at 7% per year for 4 years? (a) ₹10240 (b) ₹560 (c) ₹2240 (d) ₹2800
20. 20.In how many years will ₹3500 earn ₹280 simple interest at 2% per year? (a) 3 years (b) 8 years (c) 5 years (d) 4 years
21. 21.In how many years will ₹3500 earn ₹1400 simple interest at 8% per year? (a) 10 years (b) 4 years (c) 5 years (d) 6 years
22. 22.₹6000 is invested at 4% per year simple interest. What is the amount after 5 years? (a) ₹7200 (b) ₹1200 (c) ₹7440 (d) ₹6240
23. 23.What is the simple interest on ₹10000 at 2% per year for 4 years? (a) ₹800 (b) ₹10800 (c) ₹1000 (d) ₹200
24. 24.In how many years will ₹4500 earn ₹2160 simple interest at 12% per year? (a) 5 years (b) 4 years (c) 8 years (d) 3 years
25. 25.What is the simple interest on ₹2500 at 8% per year for 5 years? (a) ₹1200 (b) ₹1000 (c) ₹200 (d) ₹3500
26. 26.The simple interest on ₹6500 for 2 years is ₹1170. What is the rate per year? (a) 8% (b) 9% (c) 18% (d) 10%
27. 27.The simple interest on ₹7000 for 3 years is ₹2310. What is the rate per year? (a) 33% (b) 10% (c) 12% (d) 11%
28. 28.What is the simple interest on ₹8500 at 3% per year for 3 years? (a) ₹1020 (b) ₹765 (c) ₹255 (d) ₹9265
29. 29.In how many years will ₹9500 earn ₹1140 simple interest at 4% per year? (a) 4 years (b) 2 years (c) 3 years (d) 6 years
30. 30.In how many years will ₹6500 earn ₹650 simple interest at 2% per year? (a) 5 years (b) 6 years (c) 10 years (d) 4 years
31. 31.In how many years will ₹4500 earn ₹1080 simple interest at 6% per year? (a) 3 years (b) 5 years (c) 8 years (d) 4 years
32. 32.The simple interest on ₹9500 for 5 years is ₹1900. What is the rate per year? (a) 3% (b) 5% (c) 20% (d) 4%
33. 33.In how many years will ₹4000 earn ₹1200 simple interest at 10% per year? (a) 3 years (b) 6 years (c) 2 years (d) 4 years
34. 34.In how many years will ₹9500 earn ₹1140 simple interest at 6% per year? (a) 2 years (b) 3 years (c) 4 years (d) 1 year
35. 35.What is the simple interest on ₹4500 at 2% per year for 4 years? (a) ₹450 (b) ₹4860 (c) ₹360 (d) ₹90
36. 36.₹2500 is invested at 9% per year simple interest. What is the amount after 4 years? (a) ₹2725 (b) ₹3400 (c) ₹900 (d) ₹3625
37. 37.In how many years will ₹4500 earn ₹540 simple interest at 6% per year? (a) 2 years (b) 1 year (c) 4 years (d) 3 years
38. 38.In how many years will ₹7500 earn ₹2025 simple interest at 9% per year? (a) 2 years (b) 6 years (c) 4 years (d) 3 years
39. 39.The simple interest on ₹4000 for 5 years is ₹2200. What is the rate per year? (a) 10% (b) 11% (c) 12% (d) 55%
40. 40.What is the simple interest on ₹3000 at 12% per year for 5 years? (a) ₹4800 (b) ₹360 (c) ₹1800 (d) ₹2160

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