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Source: — Data Sufficiency |
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by ajith » Fri Jan 22, 2010 3:40 am
bhumika.k.shah wrote:OA is C

how?
From the table (This is how addition table is read)
n = e + y
m = z + d
n + m = e + y + z + d
(1) Alone will not be sufficient
(2) Alone will not be sufficient
If we add (1) and (2) , d + y + e + z = -3 + 12 = 9 = n+m
Both together is sufficient
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