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#### Not interested in getting valuable practice questions and articles delivered to your email? No problem, unsubscribe here.  # If x + y = 2p and x − y = 2q, what is the value of (p + q)? (1) y = 8

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Math Expert V
Joined: 02 Sep 2009
Posts: 60646
If x + y = 2p and x − y = 2q, what is the value of (p + q)? (1) y = 8  [#permalink]

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Difficulty:   15% (low)

Question Stats: 80% (01:00) correct 20% (01:16) wrong based on 58 sessions

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If x + y = 2p and x − y = 2q, what is the value of (p + q)?

(1) y = 8
(2) x = 3

_________________
NUS School Moderator V
Joined: 18 Jul 2018
Posts: 1046
Location: India
Concentration: Finance, Marketing
GMAT 1: 590 Q46 V25 GMAT 2: 690 Q49 V34 WE: Engineering (Energy and Utilities)
Re: If x + y = 2p and x − y = 2q, what is the value of (p + q)? (1) y = 8  [#permalink]

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Given x+y = 2p and x-y = 2q.

2x = 2p+2q or x = p+q

From statement 1:

y = 8.
Insufficient.

From statement 2:

x = 3. or p+q = 3.
Sufficient.

Intern  B
Joined: 08 Jul 2017
Posts: 43
GMAT 1: 740 Q51 V38
Re: If x + y = 2p and x − y = 2q, what is the value of (p + q)? (1) y = 8  [#permalink]

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If x + y = 2p and x − y = 2q, what is the value of (p + q)?

(1) y = 8
(2) x = 3

Adding the two equations given in the question we get
2x = 2p + 2q
x = p + q

So to get (p+q), we only need to know the value of x.

Hence, B. Re: If x + y = 2p and x − y = 2q, what is the value of (p + q)? (1) y = 8   [#permalink] 02 Nov 2018, 01:15
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# If x + y = 2p and x − y = 2q, what is the value of (p + q)? (1) y = 8  