Difference between revisions of "2011 AMC 8 Problems/Problem 14"
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<math> \textbf{(A) } \dfrac7{18} \qquad\textbf{(B) } \dfrac7{15} \qquad\textbf{(C) } \dfrac{22}{45} \qquad\textbf{(D) } \dfrac12 \qquad\textbf{(E) } \dfrac{23}{45} </math> | <math> \textbf{(A) } \dfrac7{18} \qquad\textbf{(B) } \dfrac7{15} \qquad\textbf{(C) } \dfrac{22}{45} \qquad\textbf{(D) } \dfrac12 \qquad\textbf{(E) } \dfrac{23}{45} </math> | ||
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+ | ==Video Solution== | ||
+ | https://youtu.be/rQUwNC0gqdg?t=697 | ||
==Solution== | ==Solution== | ||
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==See Also== | ==See Also== | ||
{{AMC8 box|year=2011|num-b=13|num-a=15}} | {{AMC8 box|year=2011|num-b=13|num-a=15}} | ||
+ | {{MAA Notice}} |
Latest revision as of 19:33, 27 October 2020
Contents
Problem
There are students at Colfax Middle School, where the ratio of boys to girls is . There are students at Winthrop Middle School, where the ratio of boys to girls is . The two schools hold a dance and all students from both schools attend. What fraction of the students at the dance are girls?
Video Solution
https://youtu.be/rQUwNC0gqdg?t=697
Solution
At Colfax Middle School, there are girls. At Winthrop Middle School, there are girls. The ratio of girls to the total number of students is
See Also
2011 AMC 8 (Problems • Answer Key • Resources) | ||
Preceded by Problem 13 |
Followed by Problem 15 | |
1 • 2 • 3 • 4 • 5 • 6 • 7 • 8 • 9 • 10 • 11 • 12 • 13 • 14 • 15 • 16 • 17 • 18 • 19 • 20 • 21 • 22 • 23 • 24 • 25 | ||
All AJHSME/AMC 8 Problems and Solutions |
The problems on this page are copyrighted by the Mathematical Association of America's American Mathematics Competitions.