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

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Manager
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An item is being sold for $10 each. However, if a customer w [#permalink] New post 31 Oct 2012, 21:39
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Question Stats:

71% (04:26) correct 29% (01:35) wrong based on 66 sessions
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] New post 31 Oct 2012, 22:30
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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.

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Re: An item is being sold for $10 each. However, if a customer w [#permalink] New post 01 Nov 2012, 05:13
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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.
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Re: An item is being sold for $10 each. However, if a customer w [#permalink] New post 02 Nov 2012, 11:37
Bunuel wrote:
actleader 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.

Answer: D.


Bunuel, Where is it possible to learn more about such elimination techniques?
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] New post 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] New post 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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Re: An item is being sold for $10 each. However, if a customer w   [#permalink] 03 Nov 2012, 21:58
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