Question

A TRAIN 50m LONG PASSES OVER A BRIDGE AT A SPEED OF 30km/hr . IF IT TAKES 36s TO CROSS THE BRIDGE , FIND THE LENGTH OF THE BRIDGE .......A] 100m ....B] 200m....C] 250m ......D] 300m

Answer 1

Answer:

your answer is C

Step-by-step explanation:

Let the length of bridge be X m

Length of train = 50m

Distance covered by train = (50+X) m

Speed = 30km/h => 30×5/18 => 25/3 m/s

Time taken = 36 s

we know that ,

Speed = distance/time

Distance = Speed × time

50+X = 25/3 × 36

X = 300 - 50 => 250 m

Length of the bridge will be = 250 m

I hope it might help!