The length of a rectangle is increased by , but the width of the rectangle is decreased to keep the area of the rectangle unchanged. By what percent was the rectangle's width decreased?
it is meant to be 25% increase to the length
it should decrese by \(20\%\) becuase it is \(100\times100\div125=80\) and \(100-80=20\) so the answer is \(20\%\)
