Question

Sethu travelled (4x²+3xy²+5x) kilometre in‘2x’ hours. Find his speed of travel​

Answer 1

Distance = 4x² + 3xy² + 5x

Time = 2x

$speed \: = \:distance \div time$

= 4x² + 3xy² + 5x / 2x

= 4x²/2x + 3xy²/2x + 5x/2x

= 2x + 3y²/2 + 5/2

= 2x + 1½y² + 2½ km/h