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Intern  Joined: 04 Feb 2011
Posts: 48
Location: US
If n + k = m, what is the value of k?  [#permalink]

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1 00:00

Difficulty:   15% (low)

Question Stats: 87% (00:27) correct 13% (01:24) wrong based on 54 sessions

HideShow timer Statistics If n + k = m, what is the value of k?

(1) n = 10
(2) m + 10 = n
Manager  Joined: 14 Feb 2011
Posts: 166
Re: If n + k = m, what is the value of k?  [#permalink]

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Lolaergasheva wrote:
If n + k = m, what is the value of k?
(1) n = 10
(2) m + 10 = n

Statement 1, n=10 gives us 10+k = m, so k can be anything depending on value of m, so insufficient

Statement 2, m+10=n when put in the stem gives us m+10+k=m or k+10 = 0 or K=-10. So, sufficient.

Senior Manager  P
Joined: 13 Oct 2016
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GMAT 1: 600 Q44 V28 Re: If n + k = m, what is the value of k?  [#permalink]

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We can rephrase the question as if k = n-m

Statement 1

n =10

k = 10-m. Not Sufficient

Statement 2

m+10 = n

We know that ,

k=n-m

Therefore from statement 2 we get k =10 . Sufficient

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Joined: 02 Sep 2009
Posts: 55802
Re: If n + k = m, what is the value of k?  [#permalink]

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Lolaergasheva wrote:
If n + k = m, what is the value of k?

(1) n = 10
(2) m + 10 = n

If n + k = m, what is the value of k ?

$$n + k = m$$ --> $$k=m-n=?$$

(1) n = 10 --> $$k=m-n=m-10$$. Not sufficient.

(2) m + 10 = n --> $$m-n=-10$$, so $$k=-10$$. Sufficient.

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_________________ Re: If n + k = m, what is the value of k?   [#permalink] 19 Aug 2018, 11:01
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