A car covers a certain distance travelling at a speed of 60 kmph and returns to the starting point at a speed of 40 kmph. Find the average speed for the entire journey.

A car covers a certain distance travelling at a speed of 60 kmph and r

1.	A car covers a certain distance travelling at a speed of 60 kmph and returns to the starting point at a speed of 40 kmph. Find the average speed for the entire journey.
A.	48 kmph
B.	54 kmph
C.	72 kmph
D.	94 kmph
Answer» B. 54 kmph