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Of \(60\) children, \(30\) are happy, \(10\) are sad, and \(20\) are neither happy nor sad. There are \(20\) boys and

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by Vincen » Fri Feb 19, 2021 4:09 am

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Of \(60\) children, \(30\) are happy, \(10\) are sad, and \(20\) are neither happy nor sad. There are \(20\) boys and \(40\) girls. If there are \(6\) happy boys and \(4\) sad girls, how many boys are neither happy nor sad?

(A) 2
(B) 4
(C) 6
(D) 8
(E) 10

Answer: D

Source: Manhattan GMAT
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