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CGP EDU Academic Team
Published on: September 13, 2026
A passenger sitting in a train A moving at 90 km h -1 observes another train B moving in the opposite direction for 8 s. If the velocity of the train B is 54 km h -1 , then length of train B is:
Text Solution
Verified by ExpertsThe correct answer is:
B
Let the velocity of A be v A and the velocity of B be vb. The relative velocity is
Time 
length = 40 m s -1 x 8 s = 320 m
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