One evening, Prateek and Pranil were talking to each other face to face on a terrace. If Prateek's shadow was exactly on the body of Pranil, in which direction was Pranil facing?

It is evening, so the sun is in the west.

Shadows are always cast in the opposite direction of the light source, meaning shadows will be cast toward the east.

Prateek and Pranil are facing each other.

Prateek’s shadow falls exactly on Pranil, meaning Prateek’s shadow is in Pranil’s direction.

So, Prateek’s shadow is cast toward the east, Prateek must be facing west.

Pranil is facing Prateek, so Pranil must be facing west as well.

Thus, the correct option is: (b) West