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ILULA08: Senior | Next Rank: 100 Posts; Posts: 56; Joined: Tue Mar 31, 2009 12:17 am; GMAT Score:750+

by ILULA08 » Tue Aug 11, 2009 8:26 pm

I am attaching the image with this question.

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Source: Beat The GMAT — Data Sufficiency | Tue Aug 11, 2009 8:26 pm

prindaroy: Master | Next Rank: 500 Posts; Posts: 113; Joined: Thu Jul 16, 2009 11:23 am; Thanked: 15 times; GMAT Score:730

by prindaroy » Tue Aug 11, 2009 8:49 pm

The answer is. Both together are sufficient.

First, e + y = n, d + z = m

so m + n = e + y + d + z

stm 1: d + y = -3

stm 2: e + z = 12

so m + n = -3 + 12 = 9

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ILULA08: Senior | Next Rank: 100 Posts; Posts: 56; Joined: Tue Mar 31, 2009 12:17 am; GMAT Score:750+

by ILULA08 » Tue Aug 11, 2009 8:56 pm

Thanks

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