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Math Revolution GMAT Instructor V
Joined: 16 Aug 2015
Posts: 8017
GMAT 1: 760 Q51 V42 GPA: 3.82
How much is the total price of the 3 products?  [#permalink]

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Difficulty:   35% (medium)

Question Stats: 67% (01:00) correct 33% (01:05) wrong based on 36 sessions

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How much is the total price of the 3 products?

1) The sum of any two prices of these 3 products is \$8,000
2) At least one of them is 4,000

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Manager  G
Joined: 02 Aug 2015
Posts: 153
Re: How much is the total price of the 3 products?  [#permalink]

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MathRevolution wrote:
How much is the total price of the 3 products?

1) The sum of any two prices of these 3 products is \$8,000
2) At least one of them is 4,000

1) The sum of any two prices of these 3 products is \$8,000 - Each of the products have to be \$4000. - Sufficient.
2) At least one of them is 4,000 - Not sufficient.

Hence A.

Cheers!
Math Revolution GMAT Instructor V
Joined: 16 Aug 2015
Posts: 8017
GMAT 1: 760 Q51 V42 GPA: 3.82
Re: How much is the total price of the 3 products?  [#permalink]

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==> In the original condition, there are 3 variables, and in order to match the number of variables to the number of equations, there must be 3 equations. Since there is 1 for con 1) and 1 for con 2), E is most likely to be the answer. By solving con 1) and con 2), the price of each 3 products becomes \$4,000, hence it is unique and sufficient. This is an inequality question, one of the key questions, so you apply CMT 4 (A: if you get C too easily, consider A or B). For con 1), the price of each 3 products always becomes \$4,000, hence it is unique and sufficient. For con 2), it is unknown, hence it is not sufficient.

Therefore, the answer is A.
_________________ Re: How much is the total price of the 3 products?   [#permalink] 24 Mar 2017, 03:53
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How much is the total price of the 3 products?

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