Question
When a speed of stream is 25% of the speed of boat in
still water. If the boat can travel 60 km upstream in 5 hours and 80 km downstream in 4 hours, then what will be the distance travelled by boat in still water in 3 hours.Solution
ATQ, we can say that Speed of water is = x km/hr speed of boat in still water is = 4x km/hr Upstream speed = 12 km/hr 3x = 12 x = 4 Speed of boat in still water = 16 km/hr Required distance in 3 hours = 16 x 3 = 48 km
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