SOLUTION: At a certain school, 2/7 of the students are girls. Today, 2/3 of the girls brought their lunch. What fraction of the students are girls who brought their lunch today? How w

Algebra ->  Percentage-and-ratio-word-problems -> SOLUTION: At a certain school, 2/7 of the students are girls. Today, 2/3 of the girls brought their lunch. What fraction of the students are girls who brought their lunch today? How w      Log On


   



Question 1062074: At a certain school, 2/7
of the students are girls. Today, 2/3
of the girls brought their lunch. What fraction of the students are girls who brought their lunch today?
How would I solve this?

Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
At a certain school, 2/7
of the students are girls. Today, 2/3
of the girls brought their lunch. What fraction of the students are girls who brought their lunch today?
How would I solve this?
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Let the number of students at the school be "x"::
# of girls = (2/7)x
-----
Equation:
# who brought their lunch = (2/3)[(2/7)x] = 4/21x
----
Ans:: 4/21
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Cheers,
Stan H.