Question

5. Speed of a boat in still water is 3 km/hr. the
speed of the stream is 2 km/hr. The time taken
to go 4 km downstream in minutes is
(a) 120
(b) 96
(c) 80
(d) 48
fast​

Answer 1

Answer:

48 minutes

Step-by-step explanation:

We have,

Speed of a boat = y = 3 km/hr.

Speed of the stream = x = 2 km/hr.

Downstream Speed = (3 + 2)km/hr

                                  = 5 km/hr.

Time taken to travel 4 km downstream:

= (4/5) hr

= (4/5) * 60

= 48 minutes.

Hope it helps!

Answer 2

Answer:

48 minutes

hope it helps u