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Source: — Data Sufficiency |
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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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by ILULA08 » Tue Aug 11, 2009 8:56 pm
Thanks :)
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