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shasadou
Joined: 12 Aug 2015
Last visit: 24 Nov 2022
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Concentration: General Management, Operations
Schools: Johnson '18 (WL) Duke '18 (M) Tuck '18 (D)
GMAT 1: 640 Q40 V37
GMAT 2: 650 Q43 V36
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GPA: 3.3
WE:Management Consulting (Consulting)
12 Sep 2015, 23:31
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A
Be sure to select an answer first to save it in the Error Log before revealing the correct answer (OA)!
Difficulty:
25%
(medium)
Question Stats:
84% (01:31) correct
16%
(01:18)
wrong
based on 37
sessions
History
Date
Time
Result
Not Attempted Yet
What is the value of 16x^2+4y^2+16xy?
(1) 2x + y = 4
(2) xy = 2
(1) 2x + y = 4
(2) xy = 2
Archived Topic
Hi there,
This topic has been closed and archived due to inactivity or violation of community quality standards. No more replies are possible here.
Where to now? Join ongoing discussions on thousands of quality questions in our Data Sufficiency (DS) Forum
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13 Sep 2015, 02:02
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shasadou
OA - A
Statement 1 :
\((2x+y)^2\) = \(4^2\)
\(4x^2+4xy+y^2\) = 16
\(16x^2+16xy+16y^2\) = 16*4 = 64
Hence, sufficient
Statement 2 :
xy = 2
No further information given. Hence, not sufficient
28 Feb 2016, 22:24
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Rewriting the eq.
(4x)^2 + (2y)^2 + 2.2y.4x
= (4x + 2y)^2
=(2(2x + y))^2
1) is sufficient
2) is not
A
(4x)^2 + (2y)^2 + 2.2y.4x
= (4x + 2y)^2
=(2(2x + y))^2
1) is sufficient
2) is not
A
Archived Topic
Hi there,
This topic has been closed and archived due to inactivity or violation of community quality standards. No more replies are possible here.
Where to now? Join ongoing discussions on thousands of quality questions in our Data Sufficiency (DS) Forum
Still interested in this question? Check out the "Best Topics" block above for a better discussion on this exact question, as well as several more related questions.
Thank you for understanding, and happy exploring!
