Simple Interest Worksheet for Maths Olympiad

Maths Olympiad topic 16: Simple interest · Set 231 · 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.What is the simple interest on ₹9000 at 8% per year for 2 years? (a) ₹2160 (b) ₹720 (c) ₹10440 (d) ₹1440
2. 2.₹9000 is invested at 5% per year simple interest. What is the amount after 4 years? (a) ₹9450 (b) ₹10800 (c) ₹1800 (d) ₹11250
3. 3.In how many years will ₹9500 earn ₹4750 simple interest at 10% per year? (a) 4 years (b) 10 years (c) 5 years (d) 6 years
4. 4.₹5500 is invested at 3% per year simple interest. What is the amount after 4 years? (a) ₹660 (b) ₹5665 (c) ₹6160 (d) ₹6325
5. 5.₹9000 is invested at 4% per year simple interest. What is the amount after 5 years? (a) ₹11160 (b) ₹10800 (c) ₹1800 (d) ₹9360
6. 6.The simple interest on ₹2500 for 4 years is ₹1200. What is the rate per year? (a) 13% (b) 12% (c) 48% (d) 11%
7. 7.What is the simple interest on ₹2000 at 5% per year for 2 years? (a) ₹100 (b) ₹300 (c) ₹200 (d) ₹2200
8. 8.₹10000 is invested at 4% per year simple interest. What is the amount after 4 years? (a) ₹11600 (b) ₹10400 (c) ₹12000 (d) ₹1600
9. 9.₹5500 is invested at 5% per year simple interest. What is the amount after 3 years? (a) ₹825 (b) ₹6600 (c) ₹5775 (d) ₹6325
10. 10.₹8500 is invested at 9% per year simple interest. What is the amount after 3 years? (a) ₹9265 (b) ₹2295 (c) ₹11560 (d) ₹10795
11. 11.In how many years will ₹9500 earn ₹2660 simple interest at 7% per year? (a) 3 years (b) 5 years (c) 4 years (d) 8 years
12. 12.The simple interest on ₹5000 for 3 years is ₹1350. What is the rate per year? (a) 27% (b) 8% (c) 10% (d) 9%
13. 13.In how many years will ₹8000 earn ₹1920 simple interest at 6% per year? (a) 3 years (b) 5 years (c) 4 years (d) 8 years
14. 14.In how many years will ₹5000 earn ₹1000 simple interest at 4% per year? (a) 5 years (b) 10 years (c) 4 years (d) 6 years
15. 15.The simple interest on ₹2000 for 2 years is ₹400. What is the rate per year? (a) 9% (b) 11% (c) 20% (d) 10%
16. 16.The simple interest on ₹8000 for 5 years is ₹2800. What is the rate per year? (a) 35% (b) 8% (c) 7% (d) 6%
17. 17.In how many years will ₹1000 earn ₹360 simple interest at 12% per year? (a) 4 years (b) 3 years (c) 6 years (d) 2 years
18. 18.In how many years will ₹1500 earn ₹300 simple interest at 10% per year? (a) 4 years (b) 2 years (c) 1 year (d) 3 years
19. 19.What is the simple interest on ₹7000 at 6% per year for 2 years? (a) ₹1260 (b) ₹420 (c) ₹7840 (d) ₹840
20. 20.₹7000 is invested at 10% per year simple interest. What is the amount after 5 years? (a) ₹10500 (b) ₹11200 (c) ₹3500 (d) ₹7700
21. 21.What is the simple interest on ₹5000 at 5% per year for 2 years? (a) ₹250 (b) ₹500 (c) ₹5500 (d) ₹750
22. 22.What is the simple interest on ₹3000 at 8% per year for 4 years? (a) ₹1200 (b) ₹3960 (c) ₹960 (d) ₹240
23. 23.₹3500 is invested at 12% per year simple interest. What is the amount after 5 years? (a) ₹3920 (b) ₹6020 (c) ₹5600 (d) ₹2100
24. 24.What is the simple interest on ₹6500 at 8% per year for 4 years? (a) ₹2080 (b) ₹520 (c) ₹2600 (d) ₹8580
25. 25.What is the simple interest on ₹9500 at 11% per year for 4 years? (a) ₹4180 (b) ₹1045 (c) ₹5225 (d) ₹13680
26. 26.The simple interest on ₹6500 for 2 years is ₹1170. What is the rate per year? (a) 10% (b) 9% (c) 18% (d) 8%
27. 27.₹9000 is invested at 7% per year simple interest. What is the amount after 3 years? (a) ₹11520 (b) ₹1890 (c) ₹10890 (d) ₹9630
28. 28.₹8500 is invested at 8% per year simple interest. What is the amount after 5 years? (a) ₹3400 (b) ₹9180 (c) ₹11900 (d) ₹12580
29. 29.What is the simple interest on ₹6500 at 8% per year for 5 years? (a) ₹3120 (b) ₹9100 (c) ₹520 (d) ₹2600
30. 30.The simple interest on ₹4000 for 4 years is ₹1120. What is the rate per year? (a) 28% (b) 8% (c) 6% (d) 7%
31. 31.The simple interest on ₹1000 for 3 years is ₹180. What is the rate per year? (a) 6% (b) 18% (c) 7% (d) 5%
32. 32.The simple interest on ₹4500 for 3 years is ₹945. What is the rate per year? (a) 7% (b) 21% (c) 8% (d) 6%
33. 33.What is the simple interest on ₹7000 at 9% per year for 4 years? (a) ₹3150 (b) ₹2520 (c) ₹630 (d) ₹9520
34. 34.What is the simple interest on ₹7500 at 10% per year for 5 years? (a) ₹750 (b) ₹4500 (c) ₹11250 (d) ₹3750
35. 35.What is the simple interest on ₹7000 at 11% per year for 5 years? (a) ₹770 (b) ₹4620 (c) ₹3850 (d) ₹10850
36. 36.What is the simple interest on ₹1000 at 12% per year for 5 years? (a) ₹600 (b) ₹120 (c) ₹1600 (d) ₹720
37. 37.The simple interest on ₹4500 for 3 years is ₹1080. What is the rate per year? (a) 24% (b) 7% (c) 8% (d) 9%
38. 38.What is the simple interest on ₹2000 at 2% per year for 3 years? (a) ₹40 (b) ₹2120 (c) ₹120 (d) ₹160
39. 39.The simple interest on ₹2500 for 5 years is ₹625. What is the rate per year? (a) 5% (b) 6% (c) 4% (d) 25%
40. 40.The simple interest on ₹7500 for 2 years is ₹1650. What is the rate per year? (a) 10% (b) 11% (c) 12% (d) 22%

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