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A train is 250 m long. If the train takes 50 second to cross a tree by the railway line, then the speed of the train on Km /hr is :
Answer & Solution
Correct Answer:
Option
C
$$\eqalign{
& {\text{Speed}} = \frac{{{\text{Distance}}}}{{{\text{Time}}}} \cr
& {\text{Speed}} = \frac{{250}}{{50}} = 5{\text{ m /s}} \cr
& {\text{Speed}} = 5 \times \frac{{18}}{5} = 18{\text{ km /hr}} \cr} $$
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