SSC MTS Model Paper 2

Question : 26 of 150

Marks: +1, -0

A train travelling at 48 km/hr crosses another
train, having half its length and travelling in
opposite direction at 42 km/ hr, in 12 seconds. It
also passes a railway platform in 45 seconds. The
length of the railway platform is:

200 m
300 m
350 m
400 m

Validate

Solution:

(4) Let the lengths of the trains be 2x & x m
Total distance = Relative speed × time

= 90 \times { 5 } /{ 18 } \times 12 = 300 { m }

{ x } + 2 { x } = 300 , { x } = 100

and

2 { x } = 200

and it crosses the platform in 45 seconds,
∴ total distance covered in 45 seconds.

= 48× { 5 } /{ 18 } × 45 = 600 { m }

Length of platform = 600 – 200 = 400 m

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