SSC CGL Tier II 21 Sep 2014 Paper

Question : 89 of 100

Marks: +1, -0

Two trains of equal length are running on parallel lines in the same direction at the rate of 46 km/hr and 36 km/hr. The faster train passes the slower train in 36 seconds. The length of each train is

50 m
72 m
80 m
82 m

Validate

Solution:

(1) Length of each train = x metre
Relative speed = 46 – 36 = 10 kmph

=(10×5/18)

m/sec

=25/9

m/sec
∴ Time taken in crossing

= { \Length \of \both \trains }/{\text" Relative speed "}

⇒ 36= {2 x}/{ {25}/{9}}

⇒ 2 x=36×{25}/{9}=100

⇒ x= {100}/{2}=50

metre

Go to Question:

Prev Question

Next Question