Question 91

A train moves at the speed of 40 m/s and crosses a bridge of length 550 metres in 25 seconds. What is the length (in metres) of the train?

Solution

Let length of train = $$l$$ m

Length of bridge = 550 m

Speed of train = 40 m/s and time taken = 25 seconds

Using, speed = distance/time

=> $$40=\frac{l+550}{25}$$

=> $$l+550=40\times25=1000$$

=> $$l=1000-550=450$$ m

=> Ans - (B)

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