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Source: — Data Sufficiency |
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by shibal » Tue Jul 21, 2009 5:34 pm
IMO D
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by gmat740 » Tue Jul 21, 2009 5:42 pm
can you please explain your logic.
I got how it is A, please let me know about B
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by shibal » Tue Jul 21, 2009 5:47 pm
s+t+u+x=6

so to add up to 6 two of them must be equal to 1 and two of them must be equal to 2. hence r is 3... don't forget that the numbers can't be repeated in the line and in the row.... hope it's clear...
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