Question 10, section 6, 1000 DS

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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 21, 2007 4:36 pm

10. If x and y are positive, is x/y greater than 1?
(1) xy >1
(2) x – y > 0

Why is B? what if y is a (-) number that will not make x/y>1
x - (-y) will still be >0 BUT x/-y will not be >1

Isis Alaska

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Source: Beat The GMAT — Data Sufficiency | Sun Jan 21, 2007 4:36 pm

serg: Newbie | Next Rank: 10 Posts; Posts: 1; Joined: Thu Jan 25, 2007 10:13 am

by serg » Thu Jan 25, 2007 3:01 pm

Hi, Will try to help. We are asked if x/y>1 Yes or no question. This means that we have to determine if x is <> y. Statement 1 says that xy>1. From this one we cannot determine which is greater: x or y so it does not help. Statement 2 says that x-y>0 or x>y which is what we need. So, yes, x/y is >1.

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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 » Thu Jan 25, 2007 3:46 pm

Thanks serg

Isis Alaska

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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 » Thu Jan 25, 2007 4:43 pm

Thanks serg

Isis Alaska

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