GMAT_PowerPrep 2

This topic has expert replies
Newbie | Next Rank: 10 Posts
Posts: 9
Joined: Tue Mar 18, 2008 12:29 pm

GMAT_PowerPrep 2

by pharmd » Mon Jun 16, 2008 6:05 pm
Hi All, Could you please let me know how to solve this question? Thanks in advance.

If Y ≥ 0, what is the value of X?

1. │X- 3│≥ Y

2. │X - 3│≤ - Y

Senior | Next Rank: 100 Posts
Posts: 39
Joined: Sun Jun 15, 2008 10:50 pm
Thanked: 4 times

Re: GMAT_PowerPrep 2

by Motherjane » Tue Jun 17, 2008 4:00 pm
pharmd wrote:Hi All, Could you please let me know how to solve this question? Thanks in advance.

If Y ≥ 0, what is the value of X?

1. │X- 3│≥ Y

2. │X - 3│≤ - Y

Statement (1)
|x-3| greater than or equal to y .

This implies, either (x-3) is greater than y
i.e x is greater than y+3

OR

(3-x) is greater than y
i.e x is lesser than 3-y

Hence, x is between (3+y) and (3-y).
Insufficient. BCE

Statement(2)

|x-3| less than or equal to -y, this equation does not hold true for any value of non negative y except y = 0 ( because for any real no x, |x-3| is zero or greater than zero ) and the statement then translates to |x-3| = 0, hence x =3

Sufficient...

Hence (B)

Master | Next Rank: 500 Posts
Posts: 100
Joined: Fri Jul 27, 2007 12:36 pm
Thanked: 6 times

by g_beatthegmat » Tue Jun 17, 2008 5:46 pm
what's the OA?

Newbie | Next Rank: 10 Posts
Posts: 9
Joined: Tue Mar 18, 2008 12:29 pm

by pharmd » Wed Jun 18, 2008 7:33 am
Thanks it makes sense the correct answer is B.