Though it has a degree of two and quad means four(eg:x 2-2x-3)? The Latin prefix quadri - is used to indicate the number 4,for example:quadrilateral,quadrant,etc....Quad means 4 sided square or rectangle.
60 miles per hour and 55 miles per hour it will be 240 miles over 4 hours because if you divide 240 by 4 it is 60 miles faster than the other which is 55 miles per hour.
