# A person travels from X to Y at a speed of 40 kmph and returns by increasing his speed by 50%. What is his average speed for both the trips? Option 1) 36 kmphOption 2) 30 kmphOption 3) 48 kmphOption 4) 50 kmphOption 5) 45 kmph

$x to y= 40km/h$
$y \: to\: x = 40*\left ( \frac{150}{100} \right ) = 60km/h$
$Avg. Speed = \frac{\left (10*60*2 \right )}{\left ( 40+60 \right )}= 48km/h$