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Alvin has some marbles in a box. He keeps 1/3 of them and gives the remainder to Joyce and Sean. Joyce gets 5/8 of the remainder. What fraction of the marbles does Sean get?

2 answers

n marbles

n/3 ---> Alvin

2 n /3 ---> J and S

(5/8)(2n/3) ---> J
so
(3/8)(2n/3) ----> S

which is (1/4)n

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