Jeff Miller

GMAT OFFICIAL GUIDE PS – Mark and Ann together were allocated n boxes of cookies to sell for a club project…

Mark and Ann together were allocated n boxes of cookies to sell for a club project…

Solution:

We are given that Mark and Ann were given n boxes of cookies to sell. Mark sold n – 10 and Ann sold n – 2 boxes of cookies; thus, together they sold n – 10 + n – 2 = 2n – 12 boxes of cookies. Since together they sold fewer than n boxes, we can create the following inequality:

2n – 12 < nn < 12The only answer that is less than 12 is 11.Answer: A

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