Inequality

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jerryragland: Senior | Next Rank: 100 Posts; Posts: 58; Joined: Tue Nov 24, 2009 2:23 pm; Thanked: 1 times

by jerryragland » Sat May 22, 2010 4:07 pm

Source MGMAT

If 0 < ab < ac, is a negative?

1) c < 0
2) b > c

[spoiler]ANS : D[/spoiler]

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Source: Beat The GMAT — Data Sufficiency | Sat May 22, 2010 4:07 pm

liferocks: Legendary Member; Posts: 576; Joined: Sat Mar 13, 2010 8:31 pmFollowed by: 1 member; Thanked: 97 times

by liferocks » Sat May 22, 2010 9:30 pm

From 1
ac>0 so a and c have same sign
c<0..so a<0...sufficient

From 2

b>c...is we multiply both sides by negative then only inequality will reverse
ab<ac...a is negative...sufficient

Ans option D

"If you don't know where you are going, any road will get you there."
Lewis Carroll

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