How many cars , each 15 m long, are in a freight train which require 2 min to pass a station while traveling at 60.0 km/h

Question

How many cars , each 15 m long, are in a freight train which require 2 min to pass a station while traveling at 60.0 km/h

Answer 1

Speed = 60 km / h = 60,000 m/ hr = 60,000 m / 60 min = 1000 m / min

 

In 2 min the train travels 2000 m

 

2000 m / 15 m / car = x car - 133.3333 cars

 

but for the train to pass in 2 min the maximum length of the train is 133 cars