Question

Problem page two trains leave stations270 miles apart at the same time and travel toward each other. one train travels 70 at miles per hour while the other travels80 at miles per hour. how long will it take for the two trains to meet?

Answer 1

Let's use the variable n for time (in hours)
70n + 80n = 270
150n = 270
n = 1.8
It will take 1.8 hours, or 1 hour and 48 minutes