Question 87

A train of length 165 m travels at a speed of 54kmph crosses a bridge in 33 seconds. Find the length of the bridge. (in m)

Solution

Speed of train = 54 kmph = $$54\times\frac{5}{18}=15$$ m/s

Let length of bridge = $$x$$ m

Using, speed = distance/time

=> $$15=\frac{165+x}{33}$$

=> $$165+x=33\times15=495$$

=> $$x=495-165=330$$ m

=> Ans - (D)

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