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March 29, 2015

Homework Help: Math

Posted by Andrew on Friday, March 23, 2012 at 3:22am.

in a group of 30 students,20 are male,15 are from southern region,9 from the central and 6 from the north.if the proportion of female students is the same for each region,how many students are either female or from the central{or both}A.9 B.10 C14 D.16 E.19

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