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August 30, 2014

August 30, 2014

Posted by **makeeda** on Thursday, January 28, 2010 at 10:20pm.

i think is 2/10 that how i get my answer but not for sure that correct

- math -
**Reiny**, Thursday, January 28, 2010 at 10:33pmdepends if the socks are bundled in pairs or as singles.

If in pairs, ...

you have 10 pairs of which 4 are black, you want to pick one black pair.

prob = 4/10 or 2/5

if they are singles, ...

you have 8 black, 8 white, and 4 blue socks for a total of 20 socks.

you want 2 consecutive blacks

prob = 8/20 x 7/19 = 56/380 = 14/95

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