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Difference between revisions of "2018 AMC 12A Problems"
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| − | + | A large urn contains <math>100</math> balls, of which <math>36 \%</math> are red and the rest are blue. How many of the blue balls must be removed so that the percentage of red balls in the urn will be <math>72 \%</math>? (No red balls are to be removed.) | |
| − | <math>\textbf{(A)}\ | + | <math> \textbf{(A)}\ 28 \qquad\textbf{(B)}\ 32 \qquad\textbf{(C)}\ 36 \qquad\textbf{(D)}\ |
| + | 50 \qquad\textbf{(E)}\ 64 </math> | ||
[[2018 AMC 12A Problems/Problem 1|Solution]] | [[2018 AMC 12A Problems/Problem 1|Solution]] | ||
Revision as of 23:50, 8 February 2018
Problem 1
A large urn contains 
balls, of which 
are red and the rest are blue. How many of the blue balls must be removed so that the percentage of red balls in the urn will be 
? (No red balls are to be removed.)
