Madhya Pradesh Police Exam Model Paper 9

Given:
Length of each trains = 125 m
Speed of train 1 = 18 m/s
Speed of train 2 = 22 m/s
Concept Used:
When 2 trains move in the opposite direction, the relative speed is the sum of their speeds.
Formula Used:
Speed = Distance/Time
Calculations:
Let the time after which 2 trains will cross each other be t secs.
$\left(18+22\right)=\left(125+125\right)/\mathit{t}$
$\Rightarrow \mathit{t}=250/40$
$\Rightarrow \mathit{t}=25/4$ secs
∴ The time in which 2 trains will cross each other is 25/4 secs.