Question

a train 150 M long is running at 72 km per hour it crosses a bridge in 13 seconds find the length of the bridge

Answer 1

Solution:-

given 》 train length = 150m

》 speed = 72km/h = 72×5/18 = 20m/s

》bridge length - train lenth=

》20×13 = 260 -150

》 bridge length = 110m ans

Answer 2

110m is the length of the bridge.

Step-by-step explanation:

Given that,

Length of the train = 150m

Speed of the train = 72 Km/hr

= 72 * 5/18

= 20 m/s

Time taken by train to cross the bridge = 13 seconds

To find,

Length of the bridge = ?

Procedure:

(Length of bridge + Length of train) = speed of train * time to cross the bridge

⇒ Length of bridge + 150m = 20m/s * 13

⇒ Length of bridge = 260 - 150

∵ Length of bridge = 110m

Thus, 110m is the length of the bridge.

Learn more: Speed and Distance

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