Mathematics
Mathematics, 03.10.2021 06:30, cody6187

A long distant runner started on a coarse at an average speed of 9 mph. Half an hour later, a second runner began the same course at an average speed of 12 mph. How long after the second runner starts will the second runner overtake the first runner?

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A long distant runner started on a coarse at an average speed of 9 mph. Half an hour later, a second...

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