Directions: Read the following instructions and answer the given questions.

Two Luxury Buses B and Z start their journey from different cities S and U respectively to reach city A. They came across various small towns during their journey.

Bus B starts moving 12 km in the south direction to reach town R then takes a right turn and moves 18 km to reach town P, then takes a left turn and moves 6 km to reach city A. Towns P, Q, and R lie in the same line, and the distance between P and Q is half of the distance between towns Q and R, city Q lies between P and R.

Bus Z starts to move 18 km toward the south and reaches town W, then takes a left turn and moves 2 km more than the distance between towns Q and R to reach city A. Town V lies between U and W. The distance between V and W is double the distance between U and V.