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The 180 students in a group are to be seated in rows so that there is

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The 180 students in a group are to be seated in rows so that there is [#permalink] New post   18 Feb 2023, 23:13
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The 180 students in a group are to be seated in rows so that there is an equal number of students in each row. Each of the following could be the number of rows EXCEPT

(A) 4
(B) 20
(C) 30
(D) 40
(E) 90
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D
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Re: The 180 students in a group are to be seated in rows so that there is [#permalink] New post   20 Feb 2023, 08:20
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Obviously the number of rows must be a factor of 180. The only option which is not a factor of 180 is D (40).

Answer: D.
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Re: The 180 students in a group are to be seated in rows so that there is [#permalink]
20 Feb 2023, 08:20
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