Speed of a goods train is 72 km hr This train crosses a 250 meter platform in 26 seconds Then find t...........

Explanation:

First convert speed from km/hr to m/sec

So, Speed = 72*(5/18) = 20 m/sec
Time = 26 seconds

Let the length of the train be x meters.
We know, Distance = Speed*Time.

x+250 = 20*26
=> x = 270 meters

So length of the goods train is 270 meter

Hence, option 3 is the correct answer.