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Bunuel
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On Thursday night, 120 college students are drinking beer at a local 08 May 2019, 02:14
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89% (01:51) correct 11% (02:09) wrong based on 101 sessions

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On Thursday night, 120 college students are drinking beer at a local bar. Each student drinks either light beer or dark beer. One-third of the students are female, and one-fifth of the students drink dark beer. If 10 of the students are male and drink dark beer, how many female students drink light beer?

A. 14
B. 26
C. 40
D. 70
E. 96
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B
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On Thursday night, 120 college students are drinking beer at a local 08 May 2019, 02:24
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Bunuel
On Thursday night, 120 college students are drinking beer at a local bar. Each student drinks either light beer or dark beer. One-third of the students are female, and one-fifth of the students drink dark beer. If 10 of the students are male and drink dark beer, how many female students drink light beer?

A. 14
B. 26
C. 40
D. 70
E. 96
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120 college students are drinking beer at a local bar

One-third of the students are female = 40 So Male is 80

one-fifth of the students drink dark beer = 24

If 10 of the students are male and drink dark beer

female students drink Dark beer = 14

female students drink light beer = 40 - 14 = 26

Hence B

Another Solution

Logically, We have 40 Female and female students drink light beer cannot be more than 40, hence eliminate C, D & E.

We are left with A & B. female students drink light beer will be 40 - 14 = 26 Hence B
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On Thursday night, 120 college students are drinking beer at a local 08 May 2019, 03:07
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L = light beer
D= dark beer
F= female
M = male
The column on the end is for the total
IMO B

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On Thursday night, 120 college students are drinking beer at a local 12 May 2019, 19:18
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Bunuel
On Thursday night, 120 college students are drinking beer at a local bar. Each student drinks either light beer or dark beer. One-third of the students are female, and one-fifth of the students drink dark beer. If 10 of the students are male and drink dark beer, how many female students drink light beer?

A. 14
B. 26
C. 40
D. 70
E. 96
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We see that there are 1/3 x 120 = 40 female students and 1/5 x 120 = 24 students drink dark beer.

Since 10 male students drink dark beer, 14 female students drink dark beer.

Thus, 40 - 14 = 26 female students drink light beer.

Answer: B
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On Thursday night, 120 college students are drinking beer at a local 20 Feb 2021, 05:28
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