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# An item is being sold for \$10 each. However, if a customer w

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Manager
Joined: 25 Jun 2012
Posts: 56
An item is being sold for \$10 each. However, if a customer w  [#permalink]

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31 Oct 2012, 22:39
00:00

Difficulty:

35% (medium)

Question Stats:

72% (02:05) correct 28% (02:33) wrong based on 103 sessions

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Here is another percentage problem ►

An item is being sold for \$10 each. However, if a customer will “buy at least 3” they have a promo discount of 12%. Also, if a customer will “buy at least 10” items they will deduct an additional 8% to their “buy at least 3” promo price. If Sam buys 10 pcs of that item how much should he pay?

(A) \$92.00
(B) \$88.00
(C) \$87.04
(D) \$80.96
(E) \$80.00
Math Expert
Joined: 02 Sep 2009
Posts: 59725
Re: An item is being sold for \$10 each. However, if a customer w  [#permalink]

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01 Nov 2012, 06:13
2
Here is another percentage problem ►

An item is being sold for \$10 each. However, if a customer will “buy at least 3” they have a promo discount of 12%. Also, if a customer will “buy at least 10” items they will deduct an additional 8% to their “buy at least 3” promo price. If Sam buys 10 pcs of that item how much should he pay?

(A) \$92.00
(B) \$88.00
(C) \$87.04
(D) \$80.96
(E) \$80.00

Without any discount Sam should pay 10*10=\$100. Now, the overall discount would be slightly less than 20%, thus he must pay slightly more than \$80. Only answer choice D fits.

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Joined: 02 Jul 2012
Posts: 1098
Location: India
Concentration: Strategy
GMAT 1: 740 Q49 V42
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Re: An item is being sold for \$10 each. However, if a customer w  [#permalink]

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31 Oct 2012, 23:30
1
Here is another percentage problem ►

An item is being sold for \$10 each. However, if a customer will “buy at least 3” they have a promo discount of 12%. Also, if a customer will “buy at least 10” items they will deduct an additional 8% to their “buy at least 3” promo price. If Sam buys 10 pcs of that item how much should he pay?

(A) \$92.00
(B) \$88.00
(C) \$87.04
(D) \$80.96
(E) \$80.00

Quite straightforward. 10*10*.88*.92 = 80.96

Doubt if this is a 600-700 level question.

Kudos Please... If my post helped.
Manager
Joined: 25 Jun 2012
Posts: 56
Re: An item is being sold for \$10 each. However, if a customer w  [#permalink]

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02 Nov 2012, 12:37
Bunuel wrote:

Without any discount Sam should pay 10*10=\$100. Now, the overall discount would be slightly less than 20%, thus he must pay slightly more than \$80. Only answer choice D fits.

I suppose it can help to save time and time is a very, maybe even the most valuable resource.
Intern
Joined: 08 Oct 2012
Posts: 17
Re: An item is being sold for \$10 each. However, if a customer w  [#permalink]

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03 Nov 2012, 19:08
Hey Bunuel,
I am getting 80 after discounting 20% from \$100 so why the answer is D ?
Director
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Location: India
Concentration: Strategy, General Management
Schools: Olin - Wash U - Class of 2015
WE: Information Technology (Computer Software)
Re: An item is being sold for \$10 each. However, if a customer w  [#permalink]

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03 Nov 2012, 22:58
aah123 wrote:
Hey Bunuel,
I am getting 80 after discounting 20% from \$100 so why the answer is D ?

Because, the total discount is not 20% but slightly less than 20%.
Notice, the discount is 8% on 12% discounted price to be precise: 19.04% (obtained from 1 - (0.88*0.92) )
What Bunuel mentioned is approximation technique, slightly less than 20, so answer must be slightly above 80.

Hope it helps.
Re: An item is being sold for \$10 each. However, if a customer w   [#permalink] 03 Nov 2012, 22:58
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