Question
PSLE
A bag contains black, blue and grey marbles. 38 of the marbles are black. 47 of the remaining marbles are blue. What fraction of the marbles in the bag are grey?
2 m

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PSLE
A bag contains black, blue and grey marbles. 38 of the marbles are black. 47 of the remaining marbles are blue. What fraction of the marbles in the bag are grey?