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If the ratio of male students to female students in a philosophy class

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Bunuel
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If the ratio of male students to female students in a philosophy class [#permalink] New post   07 Nov 2018, 00:54
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If the ratio of male students to female students in a philosophy class is 3:5, and there is a total of 40 students in the class, how many female students are in the class?

A. 8
B. 15
C. 16
D. 24
E. 25
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E
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Re: If the ratio of male students to female students in a philosophy class [#permalink] New post   04 Aug 2019, 11:36
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Bunuel wrote:
If the ratio of male students to female students in a philosophy class is 3:5, and there is a total of 40 students in the class, how many female students are in the class?

A. 8
B. 15
C. 16
D. 24
E. 25


We can create the equation:

3x + 5x = 40

8x = 40

x = 5

So, there are 5 * 5 = 25 female students.

Answer: E
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Re: If the ratio of male students to female students in a philosophy class [#permalink] New post   07 Nov 2018, 01:48
If the ratio of male students to female students in a philosophy class is 3:5, and there is a total of 40 students in the class, how many female students are in the class?

A. 8
B. 15
C. 16
D. 24
E. 25

M+f=40
m=40-f
m/f=3/5
40-f/f=3/5
f= 25 option E
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Re: If the ratio of male students to female students in a philosophy class [#permalink] New post   07 Nov 2018, 03:30
Bunuel wrote:
If the ratio of male students to female students in a philosophy class is 3:5, and there is a total of 40 students in the class, how many female students are in the class?

A. 8
B. 15
C. 16
D. 24
E. 25



Total = 40

Common unit be x

3x + 5x = 8x

(40/8x)*5x

= 25.

The best answer is E.
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Re: If the ratio of male students to female students in a philosophy class [#permalink] New post   02 Aug 2019, 02:42
m:f = 3:5 so, f:t = 5:8
now as t is 40, f must be 25.

here m is male, f is female and t is total students.
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BrentGMATPrepNow
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If the ratio of male students to female students in a philosophy class [#permalink] New post   Updated on: 17 May 2021, 07:21
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Bunuel wrote:
If the ratio of male students to female students in a philosophy class is 3:5, and there is a total of 40 students in the class, how many female students are in the class?

A. 8
B. 15
C. 16
D. 24
E. 25


GIVEN: the ratio of male students to female students in a philosophy class is 3:5
3+5 = 8
So, for every 8 philosophy students, 3 are males and 5 are females.
In other words, 5/8 of the philosophy students are female.

So, if there are 40 students, the number of females = 5/8 of 40
= (5/8)(40)
= 25

Answer: E

Cheers,
Brent

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Originally posted by BrentGMATPrepNow on 25 Sep 2019, 09:01.
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Re: If the ratio of male students to female students in a philosophy class [#permalink] New post   14 Oct 2019, 14:47
Bunuel wrote:
If the ratio of male students to female students in a philosophy class is 3:5, and there is a total of 40 students in the class, how many female students are in the class?

A. 8
B. 15
C. 16
D. 24
E. 25


Female/Total=5/8
Female=(5/8)*40
Female = 25
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Re: If the ratio of male students to female students in a philosophy class [#permalink]
14 Oct 2019, 14:47
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