Question

if you will answer correctly I will mark as brainliest. ​

Answer 1

Answer:

Let x km/minute be the velocity of flow

                         and speed of boat in still water= y km/minute

let after time=t minutes it passes the raft

The travel time of raft is (60+t) minutes

       and the distance traveled is (60+t)*x = 6

                                             t = 6/x-60

From the question 60(x+y) - t(y-x) = 6

                           60x + 60y - (6/x - 60)(y - x) = 6

                       ⇒  60x + 60y - 6y/x + 60y + 6 - 60x = 6

                       ⇒ 120y - 6y/x=0

                       ⇒  20y=y/x

                           x=1/20=1/20 km/minute= 3km/hr

plz mark it brainlist

Answer 2

Answer:

refer to the attachment for answer