a van takes 5 hours to cover a distance of 600 km . what speed in kph should the van maintain to cover the same distance in 3 / 2 of the previous time ?
"( 3 / 2 ) * 5 = 7.5 hours 600 / 7.5 = 80 kph the answer is a ."
divide(600, multiply(divide(3, 2), 5))