Tuesday

July 29, 2014

July 29, 2014

Posted by **kayla** on Tuesday, January 27, 2009 at 6:11pm.

- math, psychology, puzzle -
**bobpursley**, Tuesday, January 27, 2009 at 6:14pmStart both at the same time. When the 5 min is done, you have 4 min left on the larger glass, start the bbq. When that hourglass is done, flip it over for the next nine min.

4+9=13

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