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B
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Difficulty:
5%
(low)
Question Stats:
85% (00:54) correct
15%
(01:00)
wrong
based on 1006
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History
Date
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Does the product jkmn equal 1?
(1) \(\frac{jk}{mn} = 1\)
(2) \(j = \frac{1}{k}\) and \(m = \frac{1}{n}\)
(1) \(\frac{jk}{mn} = 1\)
(2) \(j = \frac{1}{k}\) and \(m = \frac{1}{n}\)
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16 Dec 2005, 16:05
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paki
B.
1) JK/MN = 1 ..... JK = MN , all we know is that JK and MN are equal, but could be any value, not just 1..... INSUFF
2) Substitute: (1/K)*K*(1/N)*N = 1.... SUFF
31 Oct 2013, 18:03
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Bumping this up for a quick question.
Original question is asking whether jkmn = 1.
I rephrased to: does jk = 1/(mn) by dividing both sides by mn
Statement 1: jk/mn = 1 --> rephrase to jk = mn
Since jk = mn and does not equal 1/mn, I said this was sufficient.
Statement 2: j = 1/k; m = 1/n --> rephrase to jk = 1 and mn = 1
Sufficient
I chose answer choice D while the OA is B. Can someone please explain where I went wrong?
Original question is asking whether jkmn = 1.
I rephrased to: does jk = 1/(mn) by dividing both sides by mn
Statement 1: jk/mn = 1 --> rephrase to jk = mn
Since jk = mn and does not equal 1/mn, I said this was sufficient.
Statement 2: j = 1/k; m = 1/n --> rephrase to jk = 1 and mn = 1
Sufficient
I chose answer choice D while the OA is B. Can someone please explain where I went wrong?
