Answer:

12.1 seconds

Step-by-step explanation:

Distance travelled by train = (132 + 110)m = 242m

speed = 72km/h = 20m/s

speed = distance/time taken

time taken= distance / speed

= 242/20 = 12.1 secs

Answer:

you can do it like this

Step-by-step explanation:

I hope it will help you