Question

A swimmer cross a river of width 400 meters in 5 minutes his speed in kilometers/hours is?

Answer 1

Answer:

Here is Your answer buddy!

Answer 2

Answer:

speed in kilometers/hours$=$${\textrm}4.8kilometers/hours{\textrm}$

Step-by-step explanation:

Given a swimmer cross a river of width 400 meters in 5 minutes

 5 minutes $=5\times60=300$second

Distance is 400 meters

Time is 300 second

We know Speed $=\frac{\textrm{distance}}{\textrm{time}}$

Speed$=\frac{400}{300}$ meters/seconds

        $=\frac{4}{3}$${\textrm}meter/second{\textrm}$

 ${\textrm} speed in kilometers/hours{\textrm}$$=\frac{18}{5} \times\frac{4}{3}$

or  speed in kilometers/hours$=\frac{72}{15}$${\textrm}kilometers/hours{\textrm}$

$=4.8$kilometers/hours