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3x + 6y = 27 x + 2y + z = 11

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3x + 6y = 27 x + 2y + z = 11 [#permalink] New post 20 May 2018, 16:51
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Question Stats:

68% (00:51) correct 32% (00:36) wrong based on 25 sessions
3x + 6y = 27
x + 2y + z = 11

Quantity A
Quantity B
z + 5
x + 2y - 2


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: 3x + 6y = 27 x + 2y + z = 11 [#permalink] New post 18 Sep 2018, 06:15
\(3(x +2y)= 27\)
or, \(x+2y = 9\)

Qyt B = \(x+2y - 2\)
or, Qty B = \(9-2 = 7\)

Qty A = \(z + 5\)
we have, \(x+2y + z = 11\)
or, \(9 +z = 11\)
therefore \(z = 2\)
Hence Qty A = \(2 + 5 = 7\)
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Re: 3x + 6y = 27 x + 2y + z = 11   [#permalink] 18 Sep 2018, 06:15
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