GMAT PREP ?? NEED HELP...

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dferm: Master | Next Rank: 500 Posts; Posts: 446; Joined: Thu Jul 26, 2007 1:07 pm; Thanked: 6 times

by dferm » Mon Apr 21, 2008 12:37 pm

If a and b are positive numbers, what are the coordinates of the midpoint of line segment CD in the xy-plane?

(1) The coordinates of C are (a, 1-b)
(2) The coordinates of D are (1-a,b)

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Source: Beat The GMAT — Data Sufficiency | Mon Apr 21, 2008 12:37 pm

simplyjat: Master | Next Rank: 500 Posts; Posts: 423; Joined: Thu Dec 27, 2007 1:29 amFollowed by: 2 members; Location: Hyderabad, India; Thanked: 36 times; GMAT Score:770

by simplyjat » Tue Apr 22, 2008 12:53 am

already discussed here https://www.beatthegmat.com/gmat-prep-ge ... t4722.html

simplyjat

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