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11 May 2017, 01:24
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B
Be sure to select an answer first to save it in the Error Log before revealing the correct answer (OA)!
Difficulty:
15%
(low)
Question Stats:
80% (00:59) correct
20%
(01:11)
wrong
based on 147
sessions
History
Date
Time
Result
Not Attempted Yet
For positive integer n, is 12 a factor of n?
1) n is a factor of 48
2) n is a multiple of 24
1) n is a factor of 48
2) n is a multiple of 24
Pure algebraic questions like this one are no longer part of the GMAT Data Sufficiency syllabus.
For relevant Data Sufficiency questions, please check the Data Sufficiency forum:
Data Sufficiency Forum
Data Sufficiency Forum
11 May 2017, 01:38
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MathRevolution
(1) n is a factor of 48.
If n=1 then 12 is not a factor of n.
If n=12 then 12 is a factor of n.
Insufficient.
(2) 24 is divisible by 12. Hence, n is divisible by 24 also divisible by 12. Sufficient.
The answer is B.
14 May 2017, 18:31
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==> In the original condition, there is 1 variable. In order to match the number of variables to the number of equations, there must be 1 equation. Since there is 1 for con 1) and 1 for con 2), D is most likely to be the answer. For con 1), n=2 no, n=12 yes, hence it is not sufficient.
For con 2), n=24t(t=any positive integer), hence it is always yes and sufficient.
Therefore, the answer is B.
Answer: B
For con 2), n=24t(t=any positive integer), hence it is always yes and sufficient.
Therefore, the answer is B.
Answer: B
