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# If x + y = 750, then which one of the following additional details wil

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Math Expert
Joined: 02 Sep 2009
Posts: 58396
If x + y = 750, then which one of the following additional details wil  [#permalink]

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07 Apr 2019, 21:40
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86% (00:47) correct 14% (00:47) wrong based on 22 sessions

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If x + y = 750, then which one of the following additional details will determine the value of x ?

(A) x + 2y = d

(B) 2x + 4y = 2d

(C) 2x + 2y = 1500

(D) 3x = 2250 – 3y

(E) 2x + y = 15

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Joined: 09 Apr 2018
Posts: 32
Re: If x + y = 750, then which one of the following additional details wil  [#permalink]

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07 Apr 2019, 21:52
Options A & B are the same and have an additional variable, d.
Options C & D are the same as given in the question.
Option E can be used to deduce the value of x.

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Joined: 31 Oct 2013
Posts: 1467
Concentration: Accounting, Finance
GPA: 3.68
WE: Analyst (Accounting)
If x + y = 750, then which one of the following additional details wil  [#permalink]

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07 Apr 2019, 22:08
Bunuel wrote:
If x + y = 750, then which one of the following additional details will determine the value of x ?

(A) x + 2y = d . don't know d.

(B) 2x + 4y = 2d . dont know d.

(C) 2x + 2y = 1500 . x + y = 750

(D) 3x = 2250 – 3y . x + y = 750

(E) 2x + y = 15
.

Same equation will give us no solution.
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Re: If x + y = 750, then which one of the following additional details wil  [#permalink]

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08 Apr 2019, 00:05
Bunuel wrote:
If x + y = 750, then which one of the following additional details will determine the value of x ?

(A) x + 2y = d

(B) 2x + 4y = 2d

(C) 2x + 2y = 1500

(D) 3x = 2250 – 3y

(E) 2x + y = 15

(A) x + 2y = d ; d not know

(B) 2x + 4y = 2d ; d not know

(C) 2x + 2y = 1500 ; same as x+y= 750

(D) 3x = 2250 – 3y ; same as x+y= 750

(E) 2x + y = 15; yes can be used to determine value of x & y
IMO E
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Joined: 27 Jan 2017
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Re: If x + y = 750, then which one of the following additional details wil  [#permalink]

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08 Apr 2019, 02:55
as option, i and 2 have an extra variable
option 3 and 4 is the same as one given in problem statement .
Re: If x + y = 750, then which one of the following additional details wil   [#permalink] 08 Apr 2019, 02:55
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