Trains Boats and Streams Practice Test 4 with solutions

Question : 5 of 40

Marks: +1, -0

A boat goes 12 km upstream in 50 minutes and the speed of current is 4.6 km/hour. Find the speed of the boat in the still water.

Solution:

Upstream rate =

{12×60}/{50}

= 14.4 km/hour
The speed of the boat in the still water
= 14.4 + 4.6 = 19.0 km/hour

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