AMC 12A 2012 #4
Posted:
Fri Jun 15, 2012 9:32 pm
by nsguy1350
In a bag of marbles, [unparseable or potentially dangerous latex formula] of the marbles are blue and the rest are red. If the number of red marbles is doubled and the number of blue marbles stays the same, what fraction of the marbles will be red?
Re: AMC 12A 2012 #4
Posted:
Sat Jun 16, 2012 11:19 am
by darksaber21
Hypothetically, there should be three blue marbles for every two red marbles. Should the number of red marbles double, it'll be three blue marbles for every four red marbles. Thus, the fraction, which I'm betting on as the answer, of the marbles that are red would be:
[unparseable or potentially dangerous latex formula]