A boat goes 8 km downstream in one hour and goes 2 km against the stream in one hour. Find the velocity of the stream.
Answer & explanation
Correct answer: option 2
(D.S) Downstream speed = 8 km/hr.
(U.S) Upstream speed = 2 km/hr.
Speed of stream = \(\frac{D.S - U.S}{2}\) = \(\frac{8 - 2}{2}\) = 3 km/hr.