Question

560 M long train running at uniform speed take one minute and 20 seconds to pass out at the telegraph Pole what is the speed in kilometre per hour

Answer 1

The train run 560m in 80sec
Then it will run in 3600sec mean 1hour
(560x3600)/80=25200m=25.2km

Answer 2

$we \:know, \\ speed = \frac{l}{t} = \frac{ \frac{560}{1000} }{ \frac{80}{3600} } km/h$
$= > \: speed = \frac{126}{5} \: km/h$
$= > \: speed = 25.2 \:km/h$