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GMAT prep - mixture question

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fercho81: Senior | Next Rank: 100 Posts; Posts: 30; Joined: Sat Jan 31, 2009 8:29 pm; Location: new jersey; GMAT Score:640

by fercho81 » Tue May 05, 2009 3:57 pm

Thanks to everybody in advance for replying to this post.

See the attached.

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Source: Beat The GMAT — Problem Solving | Tue May 05, 2009 3:57 pm

sacx: Master | Next Rank: 500 Posts; Posts: 139; Joined: Wed Oct 22, 2008 4:36 am; Thanked: 17 times

by sacx » Wed May 06, 2009 2:38 am

.01x+.02y+.03z = .015(x+y+z)
.005y+ .015z = .005x
y + 3z = x

Choose A

SACX

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