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# M06 #16

Author Message
Senior Manager
Joined: 11 Dec 2008
Posts: 476

Kudos [?]: 250 [0], given: 12

Location: United States
GMAT 1: 760 Q49 V44
GPA: 3.9

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23 Jul 2009, 13:12
If t/u = x/y and and t/y = u/x and t, u, x, y are non-zero integers, which of the following is true?

D) t = +/- u
E) None of the above

It's harder to see the question here so it might be helpful to pull it up. I chose E) because t = u OR t = -u. Although in English we refer to +/- u as "plus or minus u" , the expression t = +/- u literally means t = u and t = -u. So, D) states that t is both + and - u, which is incorrect...

Kudos [?]: 250 [0], given: 12

Manager
Joined: 10 Jul 2009
Posts: 164

Kudos [?]: 117 [0], given: 8

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23 Jul 2009, 20:54
From the question

t/y = u/x -> t/u = y/x

t/x = u/y -> t/u = x/y

so t/u = y/x = x/y = u/t

so t=u and x = y.

If u can post what we are supposed to find then we can come up with answer.

Kudos [?]: 117 [0], given: 8

Re: M06 #16   [#permalink] 23 Jul 2009, 20:54
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# M06 #16

Moderator: Bunuel

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