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@carloliwitter: How many people are inside this Q train car? #estimation #mathphoto17 https://t.co/dDb1GSNBCD | by tads2

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@carloliwitter: How many people are inside this Q train car? #estimation #mathphoto17 https://t.co/dDb1GSNBCD

How many people are inside this Q train car? #estimation #mathphoto17 t.co/dDb1GSNBCD - @carloliwitter

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Uploaded on July 7, 2017