Question
PSLE
A packet contains gold, yellow and black marbles. 712 of the marbles are gold. 15 of the remaining marbles are yellow. What fraction of the marbles in the packet are black?
2 m

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PSLE
A packet contains gold, yellow and black marbles. 712 of the marbles are gold. 15 of the remaining marbles are yellow. What fraction of the marbles in the packet are black?