Question 1000507
two cities are 630 miles apart. A car leaves one of the cities traveling toward the second city at 60 mph. A bus leaves the second city at the same time bound for the first city at 66 mph. How long before they meet?
car and bus are approaching each other at the sum of their speeds=60+66=126 mph
travel time=distance/speed=630/126=5
How long before they meet?  5 hrs