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A train of length 150 meters takes 40.5 seconds to cross a tunnel of length 300 meters. What is the speed of the train in km/hr?
Answer & Solution
Correct Answer:
Option
C
$$\eqalign{
& {\text{Speed = }}\left( {\frac{{150 + 300}}{{40.5}}} \right)m/\sec \cr
& = \left( {\frac{{450}}{{40.5}} \times \frac{{18}}{5}} \right)km/hr \cr
& = 40km/hr \cr} $$
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