Joe is driving to the airport to pick up his wife. If he drives at his current speed, he'll arrive on time. If he drives 5 miles per hour faster, he'll arrive 12 minutes early. If he were to drive 5 miles per hour slower instead, he'd arrive 15 minutes late.

How far away is the airport?

Charlie:  I think the distance is 90 miles and the current speed of Joe's vehicle is 45 mph.

Posted by james on 2006-06-29 02:11:30