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31 Oct 2012, 22:39
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Difficulty:

25% (medium)

Question Stats:

74% (03:48) correct 26% (01:48) wrong based on 88 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
[Reveal] Spoiler: OA
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Re: An item is being sold for $10 each. However, if a customer w [#permalink] ### Show Tags 31 Oct 2012, 23:30 1 This post received KUDOS actleader wrote: 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. _________________ Did you find this post helpful?... Please let me know through the Kudos button. Thanks To The Almighty - My GMAT Debrief GMAT Reading Comprehension: 7 Most Common Passage Types Math Expert Joined: 02 Sep 2009 Posts: 39048 Followers: 7753 Kudos [?]: 106517 [2] , given: 11627 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
KUDOS
Expert's post
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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03 Nov 2012, 19:08
Hey Bunuel,
I am getting 80 after discounting 20% from $100 so why the answer is D ? Director Status: Done with formalities.. and back.. Joined: 15 Sep 2012 Posts: 641 Location: India Concentration: Strategy, General Management Schools: Olin - Wash U - Class of 2015 WE: Information Technology (Computer Software) Followers: 49 Kudos [?]: 589 [0], given: 23 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. _________________ Lets Kudos!!! Black Friday Debrief Re: An item is being sold for$10 each. However, if a customer w   [#permalink] 03 Nov 2012, 22:58
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