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# Exclusive of tax, was the total revenue from the sale of

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Senior Manager
Joined: 22 May 2003
Posts: 328

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Location: Uruguay
Exclusive of tax, was the total revenue from the sale of [#permalink]

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30 Aug 2003, 20:54
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Exclusive of tax, was the total revenue from the sale of book X
last week greater than \$100?

(1) Last week more than 9 copies of book X were sold.
(2) Last week the revenue from the sale of each copy of book X was \$10.50 plus tax.

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SVP
Joined: 03 Feb 2003
Posts: 1603

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30 Aug 2003, 23:07
n—the number of books
p—the price for one book
t—the tax on one book

The initial Q boils down to Is n(p-t)>100?

(1) n>9 not suff
(2) p=10.50+t not suff, for we do not know n. p-t=10.50

Combine: Sufficient

C.

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Senior Manager
Joined: 22 May 2003
Posts: 328

Kudos [?]: 173 [0], given: 0

Location: Uruguay

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31 Aug 2003, 10:52
I agree with the answer and explanation mentioned above, but the official answer to this question is E

Are we missing something? Or the answer sheet is just wrong?

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Intern
Joined: 17 Aug 2003
Posts: 38

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Location: USA

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31 Aug 2003, 19:23
I think by 'plus tax' they mean 'including tax'. In which case the answer would be E.

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31 Aug 2003, 19:23
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