Question

Rectangular box a has a greater volume than rectangular box and b but the length of box a is less than the length of box

Answer 1

They must have had different widths

Answer 2

Volume=length times width times height


it is possible for us to have a shorter length but have greater volume if the other 2 dimentions (width and height) are sufficiently great to compensate

example

box a is length 2, width 10 and height 20, volume is 400 cubic units
box b is length 3, width 4, and height 5, volume is 60 cubic units


the width and heigth must be greater