GMAT PREP ?? NEED HELP...

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GMAT PREP ?? NEED HELP...

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)
Source: — Data Sufficiency |

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