Simple Interest Worksheet for Maths Olympiad

Maths Olympiad topic 16: Simple interest · Set 759 · 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.₹4500 is invested at 9% per year simple interest. What is the amount after 5 years? (a) ₹6525 (b) ₹2025 (c) ₹6930 (d) ₹4905
2. 2.In how many years will ₹3500 earn ₹770 simple interest at 11% per year? (a) 3 years (b) 4 years (c) 1 year (d) 2 years
3. 3.₹7500 is invested at 11% per year simple interest. What is the amount after 2 years? (a) ₹9150 (b) ₹1650 (c) ₹8325 (d) ₹9975
4. 4.In how many years will ₹8500 earn ₹1700 simple interest at 4% per year? (a) 4 years (b) 6 years (c) 10 years (d) 5 years
5. 5.₹3500 is invested at 8% per year simple interest. What is the amount after 4 years? (a) ₹1120 (b) ₹4620 (c) ₹3780 (d) ₹4900
6. 6.The simple interest on ₹8000 for 2 years is ₹1120. What is the rate per year? (a) 14% (b) 8% (c) 7% (d) 6%
7. 7.₹7000 is invested at 7% per year simple interest. What is the amount after 3 years? (a) ₹8470 (b) ₹1470 (c) ₹8960 (d) ₹7490
8. 8.What is the simple interest on ₹3000 at 2% per year for 2 years? (a) ₹180 (b) ₹120 (c) ₹60 (d) ₹3120
9. 9.The simple interest on ₹1000 for 2 years is ₹180. What is the rate per year? (a) 10% (b) 9% (c) 8% (d) 18%
10. 10.The simple interest on ₹7000 for 2 years is ₹280. What is the rate per year? (a) 4% (b) 1% (c) 2% (d) 3%
11. 11.What is the simple interest on ₹3000 at 3% per year for 3 years? (a) ₹360 (b) ₹3270 (c) ₹90 (d) ₹270
12. 12.In how many years will ₹7000 earn ₹3080 simple interest at 11% per year? (a) 5 years (b) 8 years (c) 4 years (d) 3 years
13. 13.In how many years will ₹8000 earn ₹4000 simple interest at 10% per year? (a) 6 years (b) 4 years (c) 10 years (d) 5 years
14. 14.₹4500 is invested at 2% per year simple interest. What is the amount after 3 years? (a) ₹270 (b) ₹4590 (c) ₹4770 (d) ₹4860
15. 15.₹3000 is invested at 5% per year simple interest. What is the amount after 5 years? (a) ₹3900 (b) ₹750 (c) ₹3150 (d) ₹3750
16. 16.₹3500 is invested at 7% per year simple interest. What is the amount after 3 years? (a) ₹735 (b) ₹3745 (c) ₹4480 (d) ₹4235
17. 17.₹1000 is invested at 3% per year simple interest. What is the amount after 5 years? (a) ₹1030 (b) ₹150 (c) ₹1180 (d) ₹1150
18. 18.The simple interest on ₹9500 for 3 years is ₹2280. What is the rate per year? (a) 24% (b) 9% (c) 7% (d) 8%
19. 19.In how many years will ₹6000 earn ₹1200 simple interest at 10% per year? (a) 2 years (b) 3 years (c) 4 years (d) 1 year
20. 20.₹5000 is invested at 8% per year simple interest. What is the amount after 3 years? (a) ₹5400 (b) ₹6200 (c) ₹6600 (d) ₹1200
21. 21.In how many years will ₹1500 earn ₹150 simple interest at 2% per year? (a) 5 years (b) 10 years (c) 4 years (d) 6 years
22. 22.What is the simple interest on ₹7000 at 10% per year for 4 years? (a) ₹9800 (b) ₹3500 (c) ₹2800 (d) ₹700
23. 23.In how many years will ₹4000 earn ₹480 simple interest at 3% per year? (a) 5 years (b) 8 years (c) 4 years (d) 3 years
24. 24.₹10000 is invested at 5% per year simple interest. What is the amount after 5 years? (a) ₹13000 (b) ₹12500 (c) ₹10500 (d) ₹2500
25. 25.₹4500 is invested at 5% per year simple interest. What is the amount after 2 years? (a) ₹450 (b) ₹4725 (c) ₹4950 (d) ₹5175
26. 26.₹2500 is invested at 2% per year simple interest. What is the amount after 2 years? (a) ₹2650 (b) ₹2550 (c) ₹2600 (d) ₹100
27. 27.What is the simple interest on ₹3500 at 2% per year for 2 years? (a) ₹70 (b) ₹140 (c) ₹210 (d) ₹3640
28. 28.The simple interest on ₹6500 for 4 years is ₹3120. What is the rate per year? (a) 13% (b) 12% (c) 48% (d) 11%
29. 29.What is the simple interest on ₹3500 at 9% per year for 2 years? (a) ₹315 (b) ₹630 (c) ₹4130 (d) ₹945
30. 30.The simple interest on ₹1000 for 2 years is ₹100. What is the rate per year? (a) 6% (b) 10% (c) 5% (d) 4%
31. 31.What is the simple interest on ₹9000 at 6% per year for 2 years? (a) ₹1080 (b) ₹1620 (c) ₹10080 (d) ₹540
32. 32.In how many years will ₹6000 earn ₹1800 simple interest at 6% per year? (a) 10 years (b) 5 years (c) 4 years (d) 6 years
33. 33.In how many years will ₹3500 earn ₹350 simple interest at 5% per year? (a) 3 years (b) 1 year (c) 2 years (d) 4 years
34. 34.What is the simple interest on ₹7500 at 12% per year for 3 years? (a) ₹900 (b) ₹10200 (c) ₹2700 (d) ₹3600
35. 35.₹6000 is invested at 5% per year simple interest. What is the amount after 5 years? (a) ₹7800 (b) ₹7500 (c) ₹1500 (d) ₹6300
36. 36.What is the simple interest on ₹1000 at 11% per year for 2 years? (a) ₹1220 (b) ₹330 (c) ₹110 (d) ₹220
37. 37.In how many years will ₹2000 earn ₹400 simple interest at 4% per year? (a) 6 years (b) 10 years (c) 5 years (d) 4 years
38. 38.In how many years will ₹9500 earn ₹1710 simple interest at 6% per year? (a) 2 years (b) 4 years (c) 3 years (d) 6 years
39. 39.What is the simple interest on ₹3500 at 4% per year for 4 years? (a) ₹4060 (b) ₹140 (c) ₹560 (d) ₹700
40. 40.What is the simple interest on ₹4500 at 3% per year for 2 years? (a) ₹4770 (b) ₹405 (c) ₹270 (d) ₹135

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