Question

11.
(3) 3.73 11
Two trains each of length 150 m are moving in
opposite direction at 36 km/hr and 72 km/hr
respectively. Time taken by them to just cross
each other completely is
(2) 6 s
(1) 4 s
(3) 8 5
(4) 10 s
Olli
Aa​

Answer 1

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