Itinerary Problems With Ratios: Problem 3

Problem: Quinn and Patrick start from the points A and B and move towards each other at the same time, with constant speeds. Quinn travels 80 meters per hour and Patrick travels 60 meters per hour. After a period of time, the two meet at Point C. But if Quinn had paused for seven minutes some time before meeting Patrick, and then the two meet, they meet at Point D, the same distance to the midpoint of AB as Point C. What is the distance from A to B?

Key: Use ratios and units

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