Motorboat downstream problem (mechanics)

[gurparwaan]

Homework Statement

A motorboat going downstream overcomes a float at point A . 60 min. later it turns and after some time passes the boat at a distance of 12 km from point A. the velocity of stream is (assuming constant vel. of boat in still water)
6/3/4/2

Homework Equations

The Attempt at a Solution

 

[cupid.callin]

IE Irodov ?

sorry but you need to show your attempt before you get help.

 

[Redbelly98]

gurparwaan, check your Private Messages (PM's) for an important message from me.