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Algebra 7 Online
OpenStudy (anonymous):

Victoria has a box of 30 marbles. One fifth of the marbles are red and the remaining marbles are one third green and two thirds blue. How many blue marbles are there?

OpenStudy (internettroll11):

1/5 * 30 = 6. Therefore, there are 24 remaining marbles. 1/3 of those are green which is 8. Leaving 16 blue marbles.

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