A. 50 m
B. 100 m
C. 150 m
D. 200 m
Let the length of each train be z metres.
Then, distance covered = 2z metres.
Relative speed = (46 - 36) km/hr
= [ 10 x (5/18) ] m/sec
= (25/9) m/sec
=> 2z/36 = 25/9
=> z = 50
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