IBPS RRB Office Assistant 2018 Paper

Let the length of train and platform be x and y, respectively.
Given, speed of train = 72 km/h
=72×

5

18

m∕s=20m∕s
∵ We‌know,Speed=

Distance

Time

According to the question,
From Ist condition, 20=

x

18

∴ x = 360 m
From llnd condition,
20=

x+y

33

⇒ 20=

360+y

33

⇒ 660 - 360 = y
∴ y = 300 m
Hence, length of platform = 300 m