Question

The length of the bridge, which a train 130 meters long and travelling at 45 km/hr can cross in 30 seconds, is:

Answer 1

Answer:

Here is your answer

Explanation:

Answer 2

Answer:

245 m

Step-by-step explanation:

Let, Length of Bridge = x

Total Distance = ( x + 130 )m

Speed = 45 km/h

          = 45 * (5/18) m/s

          = 25/2 m/s

Time = 30 s

So,

Distance/Time = Speed

or, ( x + 130)/30 = 25/2

or, x = 245

.................Thanks..................