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#### Not interested in getting valuable practice questions and articles delivered to your email? No problem, unsubscribe here.  # Does r - s= 52? (1) r = -s - 2 (2) s = -27 and r = 25

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Math Expert V
Joined: 02 Sep 2009
Posts: 59182
Does r - s= 52? (1) r = -s - 2 (2) s = -27 and r = 25  [#permalink]

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Difficulty:   35% (medium)

Question Stats: 75% (00:56) correct 25% (01:00) wrong based on 28 sessions

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Does r - s= 52?

(1) r = -s - 2

(2) s = -27 and r = 25

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Math Expert V
Joined: 02 Aug 2009
Posts: 8198
Re: Does r - s= 52? (1) r = -s - 2 (2) s = -27 and r = 25  [#permalink]

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Does r - s= 52?

(1) r = -s - 2
r+s=-2....
Two variables, one equation
Insuff

(2) s = -27 and r = 25
Straight forward. Substitute s and r to get the answer

B
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SVP  P
Joined: 03 Jun 2019
Posts: 1853
Location: India
Re: Does r - s= 52? (1) r = -s - 2 (2) s = -27 and r = 25  [#permalink]

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Bunuel wrote:
Does r - s= 52?

(1) r = -s - 2

(2) s = -27 and r = 25

Asked: Does r - s= 52?

(1) r = -s - 2
r+s = -2
r-s = -2-2s
NOT SUFFICIENT

(2) s = -27 and r = 25
r-s = 25+27 = 52
SUFFICIENT

IMO B
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E-mail : kinshook.chaturvedi@gmail.com Re: Does r - s= 52? (1) r = -s - 2 (2) s = -27 and r = 25   [#permalink] 18 Oct 2019, 00:53
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# Does r - s= 52? (1) r = -s - 2 (2) s = -27 and r = 25  