Answer: Hello!
You know that the train travels 132 feet in 1 second, and now you want to know how many miles travels in one hour.
First, we know that 1 mile is equivalent to 5280 feets, and in one hour we have 60*60 = 3600 seconds.
then, knowing that the train travels 132 feets per second, in 3600 seconds it travels 3600s*132ft/s = 475200ft
and now we need to write this in miles, knowing that each mile has 5280 feet:
475200/5280 = 90 miles.
