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resilient: Legendary Member; Posts: 789; Joined: Sun May 06, 2007 1:25 amFollowed by: 6 members; Location: Southern California, USA; Thanked: 15 times

by resilient » Sun May 25, 2008 9:19 am

If x is an integer, is 3x less than 500?

(1) 4^x–1 < 4x – 120

(2) x^2 = 36

question can be rephrased as: is x<6?

what is the best way to solve statement two? I am choosing numbers to force answer out but looking for faster and easier way!

qa is c

Appetite for 700 and I scraped my plate!

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Source: Beat The GMAT — Data Sufficiency | Sun May 25, 2008 9:19 am

netigen: Legendary Member; Posts: 631; Joined: Mon Feb 18, 2008 11:57 pmFollowed by: 3 members; Thanked: 29 times

by netigen » Sun May 25, 2008 11:55 am

Are you sure you got the question right

how can 3x<500? be rephrased as x<6?

BTW from A you get x>4 and from B you get x=+-(6)

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