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If M and N are integers, what is the value of M + N? (1) (M)(N) = 10

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Joined: 15 Dec 2015
Posts: 120
GMAT 1: 660 Q46 V35
GPA: 4
WE: Information Technology (Computer Software)
If M and N are integers, what is the value of M + N? (1) (M)(N) = 10 [#permalink]

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New post 12 Aug 2017, 01:27
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  45% (medium)

Question Stats:

46% (00:51) correct 54% (00:50) wrong based on 39 sessions

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If M and N are integers, what is the value of M + N?

(1) MN = 10
(2) \(M^2+N^2=29\)
[Reveal] Spoiler: OA
Top Contributor
3 KUDOS received
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Status: I don't stop when I'm Tired,I stop when I'm done
Joined: 11 May 2014
Posts: 563
Location: Bangladesh
Concentration: Finance, Leadership
GPA: 2.81
WE: Business Development (Real Estate)
Re: If M and N are integers, what is the value of M + N? (1) (M)(N) = 10 [#permalink]

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New post 12 Aug 2017, 01:54
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DH99 wrote:
If M and N are integers, what is the value of M + N?

(1) MN = 10
(2) \(M^2+N^2=29\)


(1)
    If M=5 and N=2 ,then MN=10 and M+N=7
    if M=10 and N-=1,then MN=10 ,but M+N=11.. Not Sufficient

(2)
    If M=5 and N=2 ,then \(M^2+N^2=29\) and M+N=7

    if M=-5 and N=-2 then \(M^2+N^2=29\) ,but M+N=-7..Not Sufficient

Together,
    If M=5 and N=2,then MN=10 and \(M^2+N^2=29\).Hence ,M+N=7

    If M=-5 and N=-2,then MN=10 and \(M^2+N^2=29\).But M+N=-7...Not Sufficient

Therefore the Correct Answer is E
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Md. Abdur Rakib

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Sentence Correction-Collection of Ron Purewal's "elliptical construction/analogies" for SC Challenges

Manager
Manager
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G
Joined: 15 Dec 2015
Posts: 120
GMAT 1: 660 Q46 V35
GPA: 4
WE: Information Technology (Computer Software)
Re: If M and N are integers, what is the value of M + N? (1) (M)(N) = 10 [#permalink]

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New post 12 Aug 2017, 01:59
AbdurRakib: Good Explanation +1 kudos
Re: If M and N are integers, what is the value of M + N? (1) (M)(N) = 10   [#permalink] 12 Aug 2017, 01:59
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If M and N are integers, what is the value of M + N? (1) (M)(N) = 10

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