Some students paint the inside of several boxes. They paint each box a different color. They observe that the inside of the box
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Explanation:
The given data is as follows.
width = 100 m, speed = 3 m/s
So, minimum time required to cross the stream is calculated as follows.
t =
Also, in the same time the man has moved downstream by 50 meter.
Hence, distance traveled downstream is as follows.
d = velocity of river × t
=
=
= 1.5 m/s
Thus, we can conclude that the river is flowing by 1.5 m/s.