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December 21, 2014

December 21, 2014

Posted by **Edna** on Thursday, October 27, 2011 at 6:00pm.

- math -
**Reiny**, Thursday, October 27, 2011 at 8:34pm3 of 10 history books ---> C(10,3)

7 of 15 novels ---> C(15,7)

number of ways = C(10,3 x C(15,7) = 120 x 6435 = 772200

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