Question

The boat speed in still water in 30km/hr. A boat travels for 3 hours downstream and then returns the same distance upstream in 5hours. Find the speed of stream​

Answer 1

let the speed of boat in still water be x

in downstream = x - 3

upstream = x+5

x + 5 =30 (x-3)

x + 5 = 30x-90

30x-x=-90-5

29x=-95

x=-95 / 29= 3.27