# A train is moving with the speed of 180 km/hr. Its speed (in m/s) is :

A train is moving with the speed of 180 km/hr. Its speed (in m/s) is :
[A]5
[B]30
[C]40
[D]50

50
Speed = 180 km/hr
$= \frac{180\times 5}{18} = 50m/s$
$\left [ \because 1km/hr = \frac{5}{18} m/s \right ]$
Hence option [D] is correct answer.