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 Post subject: Data Sufficiency, BOok VIII, pg 119, #95Posted: Mon Jan 23, 2012 7:49 am

Joined: Fri Oct 14, 2011 3:29 am
Posts: 14
Hello,

I understand why we don't have sufficient information and so the answer is E. however the answer at the back of the book states that 5 < x < 5.5 . Can you please explain how can we work out that x has to be greater than 5?

Thanks

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 Post subject: Re: Data Sufficiency, BOok VIII, pg 119, #95Posted: Tue Jan 24, 2012 5:24 pm

Joined: Thu Feb 12, 2009 6:32 pm
Posts: 497
y + z = 12

but z > y, so y < 6 and z > 6

y + z = 12
y + x = 11

z - x = 1
z - 1 = z

z > 6

z - 1 > 6 - 1

z - 1 > 5 , but z - 1 = z

so x > 5

- Veritas Help

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