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# An off-season discount of 10% is being offered at a store fo

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An off-season discount of 10% is being offered at a store fo [#permalink]  29 Apr 2019, 02:23
Expert's post
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Question Stats:

35% (00:13) correct 65% (00:26) wrong based on 20 sessions
An off-season discount of 10% is being offered at a store for any purchase with list price above \$500. No other discounts are offered at the store. John purchased a computer from the store for \$459.

 Quantity A Quantity B The list price (in dollars) of the computer that John purchased 500

A)The quantity in Column A is greater.
B)The quantity in Column B is greater.
C)The two quantities are equal.
D)The relationship cannot be determined from the information given.
[Reveal] Spoiler: OA

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Re: An off-season discount of 10% is being offered at a store fo [#permalink]  02 May 2019, 11:48
Any solutions to this please?
Founder
Joined: 18 Apr 2015
Posts: 7401
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Kudos [?]: 1449 [0], given: 6611

Re: An off-season discount of 10% is being offered at a store fo [#permalink]  03 May 2019, 01:34
Expert's post
Actually, I really do love this question. I would say is the best question in QC area I came across. Why ?

Actually you do not need either to touch your pencil and do the counts.

It is pure logic and the solution is in the stem

An off-season discount of 10% is being offered at a store for any purchase with list price above \$500.

Ok. So we do know that ABOVE a \$500 purchase we will have a discount in the order of 10% but no more than this. Even if you buy an item of one million of dollars the discount is still 10%

No other discounts are offered at the store. John purchased a computer from the store for \$459.

The underlined part is the solution to the problem, eventually: John bought an item for \$459 so he will not receive the discount. The price he have paid is full. However, We do not know whether the \$459 price that John paid for the computer was with the discount offer or without the discount offer.

Hope this helps

Regards
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Re: An off-season discount of 10% is being offered at a store fo [#permalink]  27 May 2019, 17:13
Nice one there @Carcass, I fell for A as I was thinking \$459 was the price AFTER DISCOUNT! But it didn't seem right to a question marked Hard Difficulty :D

For those who are still confused:
- If the computer's listed price was \$510, then John would receive a discount and pay \$510*90% = \$459
- If the computer's listed price was \$459, then John would receive no discount and still pay \$459

Therefore (D)
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Re: An off-season discount of 10% is being offered at a store fo [#permalink]  27 May 2019, 19:59
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We do not know whether the computer was originally priced at >\$500 or was it originally priced at \$459. Hence, unless we know this, the relationship can not be determined.

Answer: (D)
Re: An off-season discount of 10% is being offered at a store fo   [#permalink] 27 May 2019, 19:59
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# An off-season discount of 10% is being offered at a store fo

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