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# In a cookery class, (1/8)th of the number of females is equal to (1/12

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Math Expert
Joined: 02 Sep 2009
Posts: 55188
In a cookery class, (1/8)th of the number of females is equal to (1/12  [#permalink]

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26 Sep 2018, 04:55
00:00

Difficulty:

25% (medium)

Question Stats:

82% (01:13) correct 18% (02:58) wrong based on 41 sessions

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In a cookery class, (1/8)th of the number of females is equal to (1/12)th of the total number of students. What is the ratio of the number of males to the number of females in the class?

(A) 1 : 5
(B) 1 : 4
(C) 1 : 2
(D) 3 : 4
(E) 2 : 1

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Re: In a cookery class, (1/8)th of the number of females is equal to (1/12  [#permalink]

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26 Sep 2018, 05:09
Let assume total no. Of females = F
Total no. Of males = M
Total no. Of students = T
It’s F + M = T

It’s given that
F/8 = T/12
F/8 = (M+F)/12

While solving we get
M/F = 1/2

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Joined: 06 Oct 2017
Posts: 46
GPA: 3.6
Re: In a cookery class, (1/8)th of the number of females is equal to (1/12  [#permalink]

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21 Oct 2018, 11:45
vipulshahi wrote:
Let assume total no. Of females = F
Total no. Of males = M
Total no. Of students = T
It’s F + M = T

It’s given that
F/8 = T/12
F/8 = (M+F)/12

While solving we get
M/F = 1/2

Posted from my mobile device

Am I missing something???

Solving:

f/8 = m+f/12

12f=8m+8f
3f = 2m + 2f
So shouldn't f = 2m
ie the ratio is 1:2 [f/m] and hence 2:1 [m/f] ?
Re: In a cookery class, (1/8)th of the number of females is equal to (1/12   [#permalink] 21 Oct 2018, 11:45
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