Two trains are running 40 km/hr and 20 km/hr respectively in the same direction. The fast train completely passes a man sitting in the slow train in 5 seconds. The length of the fast train is

Two trains are running 40 km/hr and 20 km/hr respectively in the same

1.	Two trains are running 40 km/hr and 20 km/hr respectively in the same direction. The fast train completely passes a man sitting in the slow train in 5 seconds. The length of the fast train is
A.	<table><tr><td rowspan="2">23</td><td style="border-bottom:1px solid #000000;vertical-align:bottom;padding-bottom:2px;"><center>2 </center></td><td rowspan="2">m</td></tr><tr><td style="text-align: center;">9</td></tr></table>
B.	27 m
C.	<table><tr><td rowspan="2">27</td><td style="border-bottom:1px solid #000000;vertical-align:bottom;padding-bottom:2px;"><center>7</center></td><td rowspan="2">m</td></tr><tr><td style="text-align: center;">9</td></tr></table>
D.	23 m
Answer» D. 23 m

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Two trains are running 40 km/hr and 20 km/hr respectively in the same direction. The fast train completely passes a man sitting in the slow train in 5 seconds. The length of the fast train is

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