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ket_gmat: Senior | Next Rank: 100 Posts; Posts: 41; Joined: Sun Aug 31, 2008 10:12 am

by ket_gmat » Mon Sep 29, 2008 10:08 am

plz answer this

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Source: Beat The GMAT — Data Sufficiency | Mon Sep 29, 2008 10:08 am

4meonly: Legendary Member; Posts: 891; Joined: Sat Aug 16, 2008 4:21 amFollowed by: 1 member; Thanked: 27 times; GMAT Score:660(

by 4meonly » Mon Sep 29, 2008 10:16 am

no need to test (1) and (2) alone

Combined

x<8/9
y<1/8
x+y < 73/72
x+y can be =72/72, or 1
x+y can be =70/72, and < 1
x+y can be =72,5/72, and thus > 1
INSUFF

E

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