(A) 50 m
(B) 72 m
(C) 80 m
(D) 82 m
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(A) 50 m
(B) 72 m
(C) 80 m
(D) 82 m
Answer: Option (A) 50 m
Explanation:
Let the length of each train be x metres.
Then, distance covered = 2x metres.
Relative speed = (46 – 36) km/hr
= 10 x (5 /18)m/sec
= 25/9 m/sec
2x/36 = 25/9
2x = 100
x = 50.