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In a certain year, the number of girls who graduated
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Updated on: 26 May 2019, 01:53
Updated on: 26 May 2019, 01:53
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Question Stats:
83% (00:48) correct
16% (00:00) wrong based on 6 sessions
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In a certain year, the number of girls who graduated from City High School was twice the number of boys. If 3/4 of the girls and 5/6 of the boys went to college immediately after graduation, what fraction of the graduates that year went to college immediately after graduation
Victory, Cambridge
Show: :: OA
\(\frac{7}{9}\)
Victory, Cambridge
Re: Word Problem
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27 Jun 2018, 13:03
27 Jun 2018, 13:03
1
Expert Reply
Quote:
what fraction go the graduates that year went to college immediately after graduation
I do think is of not go.....typo.
Pick a common number of boys and girls. The LCM of 4 and 6 = 24
Girls 48
Boys 24
After
Girls 36
Boys 20
\(56 = \frac{x}{100} 72
= 77.77 %\)
Please provide always the OA in spoiler.
Regards
Re: Word Problem
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26 May 2019, 01:29
26 May 2019, 01:29
1
Menna wrote:
In a certain year, the number of girls who graduated from City High School was twice the number of boys. If 3/4 of the girls and 5/6 of the boys went to college immediately after graduation, what fraction of the graduates that year went to college immediately after graduation
Official Answer: 7/9
Victory, Cambridge
Official Answer: 7/9
Victory, Cambridge
ANSWER.......
total no. of students = G + B
G = 2B
so, total students = 2B + B = 3B
Now, total graduates who went to college immediately = 3/4 of G + 5/6 of B
bla...bla....bla................................... = 3/4 of 2B + 5/6 of B
bla....bla...bla.................................... = 3/2 of B + 5/6 of B
bla....bla....bla................................... = 28/12 of B
i.e ...............................................= 28/36 of total students = 7/9 (Voila.....)
