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# What is the value of x – y ? (1) (x – y)^2 = 25 (2) 4x = 4(y + 3)

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Senior RC Moderator
Joined: 02 Nov 2016
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GPA: 3.39
What is the value of x – y ? (1) (x – y)^2 = 25 (2) 4x = 4(y + 3)  [#permalink]

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28 Mar 2019, 12:26
00:00

Difficulty:

25% (medium)

Question Stats:

75% (00:47) correct 25% (01:00) wrong based on 36 sessions

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What is the value of $$x – y ?$$

(1) $$(x – y)^2 = 25$$

(2) $$4x = 4(y + 3)$$

Source: McGraw-Hill's GMAT
Difficulty Level: 650

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WE: Engineering (Energy and Utilities)
Re: What is the value of x – y ? (1) (x – y)^2 = 25 (2) 4x = 4(y + 3)  [#permalink]

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28 Mar 2019, 12:31
1
From S1:

$$(x-y)^2 = 25$$
x-y = +5 or -5
Hence Insufficient.

From S2:

4x = 4(y+3)
x = y+3
x-y = 3
Sufficient.

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Re: What is the value of x – y ? (1) (x – y)^2 = 25 (2) 4x = 4(y + 3)  [#permalink]

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28 Mar 2019, 13:16
What is the value of $$x – y ?$$

(1) $$(x – y)^2 = 25$$

(2) $$4x = 4(y + 3)$$

Source: McGraw-Hill's GMAT

#1
x-y= +/-5 ; insufficient
#2
solve ; x-y= 3/4
sufficient
IMO B
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Joined: 27 May 2012
Posts: 906
Re: What is the value of x – y ? (1) (x – y)^2 = 25 (2) 4x = 4(y + 3)  [#permalink]

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05 Apr 2019, 06:00
What is the value of $$x – y ?$$

(1) $$(x – y)^2 = 25$$

(2) $$4x = 4(y + 3)$$

Source: McGraw-Hill's GMAT

Both the statements are inconsistent, both should give the same value for X-Y.
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- Stne
Re: What is the value of x – y ? (1) (x – y)^2 = 25 (2) 4x = 4(y + 3)   [#permalink] 05 Apr 2019, 06:00
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