Directions(Q.31 to Q.40 ):

A person travels half of the distance at the speed of x km/h and remaining half of the distance at 4x km/h. Find the value of ’x’ if the average speed is 36.8 km/h?

Answer : Option D

Explanation :

Let the distance be D km

ATQ

$frac{{ m{D}}}{{left( {frac{{ m{D}}}{{2{ m{x}}}} + frac{{ m{D}}}{{8{ m{x}}}}} ight)}} = 36.8$

${ m{x}} = 23$

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