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# A bookseller sells his books at a 20% markup in price. If he sells a

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Math Expert
Joined: 02 Sep 2009
Posts: 50004
A bookseller sells his books at a 20% markup in price. If he sells a  [#permalink]

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31 Jan 2016, 08:08
00:00

Difficulty:

5% (low)

Question Stats:

89% (00:35) correct 11% (02:23) wrong based on 55 sessions

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A bookseller sells his books at a 20% markup in price. If he sells a book for \$12.00, how much did he pay for it?

A. \$14.40
B. \$14.00
C. \$10.00
D. \$9.60
E. \$5.00

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Re: A bookseller sells his books at a 20% markup in price. If he sells a  [#permalink]

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31 Jan 2016, 12:36
Let the cost price of book = x
Selling price of book = 12\$
Markup % = 20
(120/100)x = 12
=> x = 10
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Joined: 12 Sep 2015
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A bookseller sells his books at a 20% markup in price. If he sells a  [#permalink]

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28 Nov 2017, 10:39
1
Top Contributor
Bunuel wrote:
A bookseller sells his books at a 20% markup in price. If he sells a book for \$12.00, how much did he pay for it?

A. \$14.40
B. \$14.00
C. \$10.00
D. \$9.60
E. \$5.00

Another approach is to test the answer choices

If it turns out that value is too high, then you can test smaller values.
If it turns out that value is too small, then you can test bigger values.

Test C: The bookseller paid \$10.00
20% of \$10.00 = \$2.00
\$10.00 + \$2.00 = \$12.00
BINGO!

Cheers,
Brent
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Brent Hanneson – GMATPrepNow.com

A bookseller sells his books at a 20% markup in price. If he sells a &nbs [#permalink] 28 Nov 2017, 10:39
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