Is W greater

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sanju09: GMAT Instructor; Posts: 3650; Joined: Wed Jan 21, 2009 4:27 amFollowed by: 80 members; Location: India; Thanked: 267 times; GMAT Score:760

by sanju09 » Fri Apr 10, 2009 6:12 am

Is W greater than 1?

(1) W + 2 > 0.

(2) W^2 > 1.

OA E

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Source: Beat The GMAT — Data Sufficiency | Fri Apr 10, 2009 6:12 am

lolo: Junior | Next Rank: 30 Posts; Posts: 17; Joined: Sat Dec 13, 2008 9:00 am

by lolo » Fri Apr 10, 2009 9:10 am

E is the correct answer.

(1) is insuffucient because we get W>-2
(2) is also insufficient because we cannot guess whether W is positive or negative.

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