Question

a boat can cover 30 kms in upstream and 44 kms in downstream in 10 hrs.the same boat can cover 40 kms in upstream and 55 kms in downstream in 13 hrs.then find the speed of boat in steal water and speed of the stream​

Answer 1

Answer:

speed of the boat in still water = x.

speed of the boat in stream water = y.

speed of down stream = (x+y) km/hr.

speed of up stream = ( x-y ) km/hr.

30 / x-y. +. 44/ x+y = 10

let 1/x-y = p,

1/x+y = q.

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