x/y type of question

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isisalaska: Community Manager; Posts: 363; Joined: Sun Dec 10, 2006 12:24 pmFollowed by: 3 members; Location: St. Louis; Thanked: 7 times

by isisalaska » Sun Jan 07, 2007 10:35 am

I though is two numbers ar ethe same the result is alsways 1...

If both X and Y are nonzero numbers what is the value of x/y?
1) x=6
2) y^2=y^2

why is E?

Isis Alaska

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Source: Beat The GMAT — Data Sufficiency | Sun Jan 07, 2007 10:35 am

thankont: Senior | Next Rank: 100 Posts; Posts: 41; Joined: Fri Dec 15, 2006 9:23 amFollowed by: 1 member; Location: Greece

by thankont » Tue Jan 09, 2007 6:26 am

first of all I think you mean x^2 = y^2 (1). Now since we have squares
we have 2 cases for example (-3)^2 = (3)^2 and equation (1) holds
for y=+,- x and not just for positive x only, so ratio could be either 1 or -1

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