How many miles is good enough for a bus?
From the walls of the DC Metro, this ad:

How about that 8,260 miles? No, we can't talk about shoes.
What other mathematical aspects of this caught your attention? What do you wonder about the situation?
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@MathCurmudgeon math argument? 
Via @JohnAllenPaulos 
— Megan Schmidt (@Veganmathbeagle) February 21, 2014
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