Simple Interest Worksheet for Maths Olympiad

Maths Olympiad topic 16: Simple interest · Set 616 · 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.₹6500 is invested at 3% per year simple interest. What is the amount after 3 years? (a) ₹585 (b) ₹6695 (c) ₹7085 (d) ₹7280
2. 2.₹2000 is invested at 7% per year simple interest. What is the amount after 3 years? (a) ₹420 (b) ₹2140 (c) ₹2560 (d) ₹2420
3. 3.The simple interest on ₹2500 for 4 years is ₹1000. What is the rate per year? (a) 11% (b) 10% (c) 9% (d) 40%
4. 4.What is the simple interest on ₹10000 at 8% per year for 5 years? (a) ₹800 (b) ₹14000 (c) ₹4000 (d) ₹4800
5. 5.In how many years will ₹4000 earn ₹480 simple interest at 4% per year? (a) 4 years (b) 6 years (c) 3 years (d) 2 years
6. 6.What is the simple interest on ₹3000 at 5% per year for 5 years? (a) ₹900 (b) ₹3750 (c) ₹150 (d) ₹750
7. 7.What is the simple interest on ₹9500 at 5% per year for 3 years? (a) ₹10925 (b) ₹475 (c) ₹1900 (d) ₹1425
8. 8.₹3500 is invested at 2% per year simple interest. What is the amount after 4 years? (a) ₹280 (b) ₹3570 (c) ₹3850 (d) ₹3780
9. 9.In how many years will ₹3500 earn ₹280 simple interest at 2% per year? (a) 5 years (b) 8 years (c) 3 years (d) 4 years
10. 10.What is the simple interest on ₹3500 at 10% per year for 5 years? (a) ₹350 (b) ₹1750 (c) ₹5250 (d) ₹2100
11. 11.₹4000 is invested at 11% per year simple interest. What is the amount after 4 years? (a) ₹4440 (b) ₹1760 (c) ₹6200 (d) ₹5760
12. 12.₹7000 is invested at 11% per year simple interest. What is the amount after 4 years? (a) ₹3080 (b) ₹10080 (c) ₹10850 (d) ₹7770
13. 13.₹9500 is invested at 10% per year simple interest. What is the amount after 3 years? (a) ₹2850 (b) ₹12350 (c) ₹13300 (d) ₹10450
14. 14.₹3000 is invested at 12% per year simple interest. What is the amount after 5 years? (a) ₹5160 (b) ₹4800 (c) ₹3360 (d) ₹1800
15. 15.The simple interest on ₹9500 for 3 years is ₹2280. What is the rate per year? (a) 9% (b) 8% (c) 24% (d) 7%
16. 16.In how many years will ₹9500 earn ₹2090 simple interest at 11% per year? (a) 2 years (b) 1 year (c) 4 years (d) 3 years
17. 17.The simple interest on ₹8500 for 5 years is ₹1700. What is the rate per year? (a) 5% (b) 4% (c) 3% (d) 20%
18. 18.In how many years will ₹5500 earn ₹3025 simple interest at 11% per year? (a) 5 years (b) 4 years (c) 10 years (d) 6 years
19. 19.The simple interest on ₹5500 for 2 years is ₹1320. What is the rate per year? (a) 24% (b) 11% (c) 13% (d) 12%
20. 20.What is the simple interest on ₹10000 at 6% per year for 4 years? (a) ₹2400 (b) ₹3000 (c) ₹600 (d) ₹12400
21. 21.In how many years will ₹3000 earn ₹300 simple interest at 5% per year? (a) 3 years (b) 1 year (c) 2 years (d) 4 years
22. 22.What is the simple interest on ₹8000 at 11% per year for 2 years? (a) ₹9760 (b) ₹880 (c) ₹2640 (d) ₹1760
23. 23.₹5000 is invested at 7% per year simple interest. What is the amount after 5 years? (a) ₹5350 (b) ₹7100 (c) ₹6750 (d) ₹1750
24. 24.The simple interest on ₹8000 for 5 years is ₹2400. What is the rate per year? (a) 7% (b) 5% (c) 30% (d) 6%
25. 25.In how many years will ₹4000 earn ₹840 simple interest at 7% per year? (a) 2 years (b) 4 years (c) 3 years (d) 6 years
26. 26.In how many years will ₹9500 earn ₹3135 simple interest at 11% per year? (a) 2 years (b) 4 years (c) 3 years (d) 6 years
27. 27.In how many years will ₹4000 earn ₹880 simple interest at 11% per year? (a) 1 year (b) 3 years (c) 4 years (d) 2 years
28. 28.₹4000 is invested at 7% per year simple interest. What is the amount after 5 years? (a) ₹5400 (b) ₹1400 (c) ₹4280 (d) ₹5680
29. 29.₹2500 is invested at 8% per year simple interest. What is the amount after 4 years? (a) ₹2700 (b) ₹800 (c) ₹3300 (d) ₹3500
30. 30.What is the simple interest on ₹8000 at 4% per year for 4 years? (a) ₹320 (b) ₹1600 (c) ₹9280 (d) ₹1280
31. 31.What is the simple interest on ₹8500 at 9% per year for 5 years? (a) ₹4590 (b) ₹3825 (c) ₹12325 (d) ₹765
32. 32.₹4000 is invested at 10% per year simple interest. What is the amount after 3 years? (a) ₹1200 (b) ₹5600 (c) ₹4400 (d) ₹5200
33. 33.The simple interest on ₹5000 for 5 years is ₹500. What is the rate per year? (a) 2% (b) 10% (c) 3% (d) 1%
34. 34.The simple interest on ₹5500 for 4 years is ₹1320. What is the rate per year? (a) 24% (b) 6% (c) 7% (d) 5%
35. 35.₹6500 is invested at 12% per year simple interest. What is the amount after 3 years? (a) ₹7280 (b) ₹8840 (c) ₹2340 (d) ₹9620
36. 36.What is the simple interest on ₹2500 at 12% per year for 3 years? (a) ₹3400 (b) ₹1200 (c) ₹300 (d) ₹900
37. 37.The simple interest on ₹2500 for 4 years is ₹300. What is the rate per year? (a) 4% (b) 2% (c) 12% (d) 3%
38. 38.In how many years will ₹2000 earn ₹900 simple interest at 9% per year? (a) 10 years (b) 4 years (c) 5 years (d) 6 years
39. 39.What is the simple interest on ₹8500 at 6% per year for 2 years? (a) ₹1530 (b) ₹510 (c) ₹1020 (d) ₹9520
40. 40.₹3500 is invested at 7% per year simple interest. What is the amount after 4 years? (a) ₹4480 (b) ₹980 (c) ₹3745 (d) ₹4725

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