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

A) 3 minutes

B) 4 minutes

C) 2 minutes

D) 3 min. 40 sec.

Correct answer:
A) 3 minutes

Description for Correct answer:
x = \( \Large \left(24+1\right) \times 60 = 1500 m \) = 1.5 km

Given : y = 1.5 km, v = 60 kmph,

t = \( \Large \frac{x+y}{v}=\frac{3}{60}hr \) =3min

Please provide the error details in above question

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