(A) 23 m
(B) 23(2/9) m
(C) 27(7/9) m
(D) 29 m
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(A) 23 m
(B) 23(2/9) m
(C) 27(7/9) m
(D) 29 m
Answer: Option (C) 27(7/9) m
Explanation:
Relative speed = (40 – 20) km/hr =20 x (5/18) m/sec = 50/9 m/sec.
Therefore Length of faster train = ( 50/9) x 5 m = 250/9 m = 27(7/9) m.