Question
A boat covers a distance of 270 km downstream in 6 hours.
If the boat's speed in upstream direction is one-third of its downstream speed, calculate the time required to travel 180 km upstream.Solution
ATQ,
Downstream speed of the boat = 270 / 6 = 45 km/h
Therefore, upstream speed of the boat = 45 / 3 = 15 km/h
Required time taken = 180 / 15 = 12 hours
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