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An item is being sold for $10 each. However, if a customer w [#permalink] ### Show Tags 31 Oct 2012, 21:39 1 This post was BOOKMARKED 00:00 Difficulty: 25% (medium) Question Stats: 73% (03:51) correct 27% (01:48) wrong based on 86 sessions ### HideShow timer Statistics 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 Moderator Joined: 02 Jul 2012 Posts: 1231 Location: India Concentration: Strategy GMAT 1: 740 Q49 V42 GPA: 3.8 WE: Engineering (Energy and Utilities) Followers: 117 Kudos [?]: 1393 [1] , given: 116 Re: An item is being sold for$10 each. However, if a customer w [#permalink]

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31 Oct 2012, 22:30
1
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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

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

Doubt if this is a 600-700 level question.

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Re: An item is being sold for $10 each. However, if a customer w [#permalink] ### Show Tags 01 Nov 2012, 05:13 2 This post received KUDOS Expert's post 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 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. Answer: D. _________________ Manager Joined: 25 Jun 2012 Posts: 65 Followers: 0 Kudos [?]: 48 [0], given: 21 Re: An item is being sold for$10 each. However, if a customer w [#permalink]

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02 Nov 2012, 11:37
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.
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Re: An item is being sold for $10 each. However, if a customer w [#permalink] ### Show Tags 03 Nov 2012, 18:08 Hey Bunuel, I am getting 80 after discounting 20% from$100 so why the answer is D ?
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Re: An item is being sold for $10 each. However, if a customer w [#permalink] ### Show Tags 03 Nov 2012, 21:58 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.
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