a jogger running at 9km/he along side a railway track is 240m a head of the engen of a 120m long train running a 45km/gr in the same direction in how much time will train pass the jogger
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Speed of train relative to jogger
= (45−9) km/hr
= 36 km/hr
=(36×185)m/sec
= 10 m/sec.
Distance to be covered = (240+120)m=360m.
∴ Time taken =( 10360)sec=36sec.
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