Question

A ship goes downstream from one port to another in 8 hours and covers the same distance upstream in 9 hours. If the speed of the stream is 3 km/hr, find the speed of the ship in still water.

Answer 1

Step-by-step explanation:

let the speed of ship be x

speed in downstream = x+3

speed in upstream = x-3

here distance in downstream and

upstream is equal so,

(x+3)8=(x-3)9

8x+24=9x-27

x= 51

hence speed of ship in still water is 51km/hr

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