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A train of 24 carriages, each carriage of 60 m length with an engine of 60 m length is running at speed of 60 km/hr. Find out the time in w…

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A train of 24 carriages, each carriage of 60 m length with an engine of 60 m length is running at speed of 60 km/hr. Find out the time in which the train will cross bridge measuring 1.5 km in length?

A1 min.
B2 min.
C3 min.
D4 min.

Correct answer: C

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Discussion 1

CCommunity02 Jul 2021

3 min.

The length of the train, x = (24 + 1) × 60 = 1.5 km
Given, length of bridge, y = 1.5 km and speed, v = 60 km/hr
Therefore, time t = (x + y)/v = (1.5 + 1.5)/60 = 3/60 hr. = 3 min.