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moshes123: Newbie | Next Rank: 10 Posts; Posts: 1; Joined: Wed Apr 29, 2009 3:59 am

by moshes123 » Wed Apr 29, 2009 7:20 am

hi all
gmat quantity problem attached
I think it's C but GmapPrep says it's B can anyone explain??

thank U!

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Source: Beat The GMAT — Problem Solving | Wed Apr 29, 2009 7:20 am

bluementor: Master | Next Rank: 500 Posts; Posts: 418; Joined: Wed Jun 11, 2008 5:29 am; Thanked: 65 times

Re: question

by bluementor » Wed Apr 29, 2009 8:04 am

It's even cheaper to buy from store Z:

After sales tax, the price is:

(10% of $90) + $90 = $99

And after receiving a rebate (after tax):

$99 - $10 = $89

Choose B

-BM-

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