Question

A boat moves in the upstream from city P to city Q and then it returns in the downstream from city Q to city P. If the speed of the boat in the stagnant water is 35 km/hr and the stream speed is 5 km/hr. then in total journey what is the Average speed of boat?

• A. 36.28 km./hr.
• B. 34.28 km./hr.
• C. 35 km./hr.
• D. 33.33 km./hr.

Answer 1

Answer: (B)