Question

A train travel a distance 140 km in 2 hrs at uniform speed. Express its speed in km/hrs and m/s.How long will it take to cover a distance of 360 km??

Answer 1

Speed =distance /time
Speed =140/2
Speed =70km/s=70*1000/3600=19.4m/s
140km -------- 2hr
360 km -------
=360*2/140=5.14 hr

Hope it helped you

Answer 2

Hey!
Here is ur solution


$given \: distance \: = 140km$
$time = 2hrs$

$speed = \frac{distance}{time} = \frac{140}{70}$
=70km/hrs

$to \: cover \: 360km$
$time = \frac{distance}{speed } = \frac{360}{70}$
$= \frac{36}{70 } = 5 \ \frac{1}{7} hrs$


@H