Question

Two trains 56 m and 44 m long moves on parallel rails in positive direction respectively at the rate of 18 and 12 km per hour in how many minutes will the train cross each other

Answer 1

Answer:

It takes 0.998 minutes.

Step-by-step explanation:

Relative speed = (18 – 12) = 6 km/h

Relative speed = (6 x $\frac{5}{18}$) m/s = 1.67 m/s

The time taken till they cross each other is equal to the sum of the lengths of the trains divided by relative speed of the trains.

time = $\frac{56 + 44}{1.67}$  = 59.88 s

The user asks us to answer in minutes, so 59.88 s = 0.998 min.

Hence, it takes 0.998 minutes to the trains cross each other.