IBPS Clerk Prelims Model Paper 8

Let the length of the train be x metres.
Train covers x metres in 4 seconds and (x + 160) metres in 20 seconds.

x

4

=

x+160

20

20x = 4x + 640
16 x = 640 x = 40 metres
Length of the train (x) = 40 metres
Speed of the train =

40

4

= 10 m/sec