Question 55

A 160 m long train crosses a 740 m long bridge in 40.5 seconds. What is the speed of the
train?

Solution

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The correct option is A.

 The train travels the distance equal to the sum of the length of bridge and the length of train itself.

So speed of train = $$\frac{distance\ travelled}{time\ taken}$$

                   = $$\frac{740+160}{40.5}$$ m/s

                  = $$\frac{900}{40.5}$$ $$\times$$ $$\frac{18}{5}$$ km/h= 80km/h

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