PU-MET : Panjab University MBA Entrance Exam with MCQ Answers 2017

Practice Mode:
90.

A motorboat, whose speed in 15 km/hr in still water goes 30 km downstream and comes back in a total of 4 hours 30 minutes. The speed of the stream (in km/hr) is:

A: 4
B: 5
C: 6
D: 10

The answer is: B