Question

A walks from P to Q at 3 km/hr and from Q to P at 6 km/hr. What is his average speed ? ( A ) 5 ( B ) 5.5 ( C ) 4.5 ( D ) 4

Answer 1

Answer:

average speed is 4.5

Step-by-step explanation:

$average \: speed = \frac{3 + 6}{2} = \frac{9}{2} = 4.5 \: kmph$

Answer 2

Answer:

(C) 4.5 is correct option.