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

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If n + k = m, what is the value of k ? [#permalink] New post 13 Aug 2012, 06:10
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A
B
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Re: If n + k = m, what is the value of k ? [#permalink] New post 13 Aug 2012, 06:11
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Re: If n + k = m, what is the value of k ? [#permalink] New post 13 Aug 2012, 07:12
IMO B
n+k=m, Find K
ie m-n = k
St 2: Sufficient: m+10=n ie m-n=-10=k
St 1: Insufficient. n=10, we don't know the value of either m or k
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Re: If n + k = m, what is the value of k ? [#permalink] New post 13 Aug 2012, 07:49
it should be B. From B alone we can compute the value of K.
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Re: If n + k = m, what is the value of k ? [#permalink] New post 17 Aug 2012, 00:37
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Re: If n + k = m, what is the value of k ? [#permalink] New post 02 May 2013, 19:16
For Statement 1: N=10

10+K=M, (K&M, are too many #'s, NOT SUFF)

For Statement 2: M+10=N
-10 -10 (subtract -10 on each side)
M = N-10
-N -N (subtract N, to Isolate M & N)
M-N = -10 This is can be solved.

Statement 2: SUFF:
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Re: If n + k = m, what is the value of k ? [#permalink] New post 17 Jun 2013, 23:54
Bunuel wrote:
If n + k = m, what is the value of k ?

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

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logic only makes u a better thinker .... don't go by pure maths, have patience :)
substitute B in question
Re: If n + k = m, what is the value of k ?   [#permalink] 17 Jun 2013, 23:54
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