Question

A bridge is 500m long . A train which is 100m long crosses the bridge with a speed of 30m/s. Find the time taken for the train to cross the bridge​

Answer 1

Answer:

20 seconds

Step-by-step explanation:

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since the train will cross bridge when its last bogie will pass over the bridge

therefore , actual length of bridge + length of train

500+100=600m

speed = 30m/s

therefore,

time = 600/30

=20 seconds

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Answer 2

ANSWER :-

Time taken to cross the bridge is 20 seconds.

EXPLANATION :-

Given,

Length of bridge = 500 m

Length of train = 100 m

Speed of train = 30 m/s

Now,

Total path covered by train

= 500 + 100

= 600 m

Time taken to cross the bridge

= Distance/Speed

= 600/30

= 20 seconds

•°• The train takes 20 seconds to cross the bridge.