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Source: — Data Sufficiency |
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by tmmyc » Mon Apr 28, 2008 3:59 pm
Numbers in list: X, Y, Z

Statement 1:
YES X * Y = 0 = 0 * 0
NO X * Y = 0 = 1 * 0

Statement 2:
Sufficient since
X + Y = 0 = 0 + 0 ONLY
X + Z = 0 = 0 + 0 ONLY
Y + Z = 0 = 0 + 0 ONLY
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