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

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

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New post 31 Jan 2016, 07:08
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C
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Question Stats:

87% (00:22) correct 13% (01:35) wrong based on 46 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
[Reveal] Spoiler: OA

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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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New post 31 Jan 2016, 11:36
Let the cost price of book = x
Selling price of book = 12$
Markup % = 20
(120/100)x = 12
=> x = 10
Answer C
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New post 28 Nov 2017, 09:39
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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

When testing the answer choices, it's a good idea to start with the MIDDLE answer choice.
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!

Answer: C

Cheers,
Brent
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A bookseller sells his books at a 20% markup in price. If he sells a   [#permalink] 28 Nov 2017, 09:39
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