A boat travels 60 kilometers upstream in 3 hours and covers the same distance of 60 kilometers downstream in 2 hours. What is the speed of the boat in still water?
Show answer & explanation
Correct answer: C
Explanation
The correct answer is option 3 i.e. 25 km/h.
Upstream speed = 60 ÷ 3 = 20 km/h
Downstream speed = 60 ÷ 2 = 30 km/h
Speed of boat in still water = (Upstream + Downstream) ÷ 2
= (20 + 30) ÷ 2 = 25 km/h