Question

Question 17 two trains leave stations 252 miles apart at the same time and travel toward each other. one train travels at 100 miles per hour while the other travels at 80 miles per hour. how long will it take for the two trains to meet?

Answer 1

The distance between them is 252 miles
For meeting they reduce the distance with 252 miles
in an hour they reduce distance with 100+80=180 miles
180 miles...........1 hour
252 miles.............x hours
------------------------------------
x=252 /180=1,4 hours=84 minutes