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# A class consists of 24 students. Which of the following CANNOT be the

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Math Expert
Joined: 02 Sep 2009
Posts: 58464
A class consists of 24 students. Which of the following CANNOT be the  [#permalink]

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24 Aug 2018, 01:10
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15% (low)

Question Stats:

87% (00:38) correct 13% (01:10) wrong based on 38 sessions

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A class consists of 24 students. Which of the following CANNOT be the ratio of the number of girls to the number of boys?

A. 1:2
B. 3:5
C. 1:1
D. 4:3
E. 7:5

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Re: A class consists of 24 students. Which of the following CANNOT be the  [#permalink]

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24 Aug 2018, 01:12
24 is not divisible by the ratio 4:3.

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A class consists of 24 students. Which of the following CANNOT be the  [#permalink]

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24 Aug 2018, 01:43
Bunuel wrote:
A class consists of 24 students. Which of the following CANNOT be the ratio of the number of girls to the number of boys?

A. 1:2
B. 3:5
C. 1:1
D. 4:3
E. 7:5

Total number of students must be divisible by the sum of the ratio.

Only option D, ( 4 + 3 ) = 7, is not a factor of 24.

A class consists of 24 students. Which of the following CANNOT be the   [#permalink] 24 Aug 2018, 01:43
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