Question

If the diameter of the cross-section of a wire is decreased by 5%, by what percentage
should the length be increased so that the volume remains the same?​

Answer 1

Answer:

Given, the diameter of a cross-section of the wire is decreased by5%. If the volume remains the same then we have to find the percentage increase in the length of the wire. Answer- The length should be increased 10.8% so that the volume remains the same.