Question
PSLE
A packet contains gold, silver and black marbles. 211 of the marbles are gold. 17 of the remaining marbles are silver. What fraction of the marbles in the packet are black?
2 m

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PSLE
A packet contains gold, silver and black marbles. 211 of the marbles are gold. 17 of the remaining marbles are silver. What fraction of the marbles in the packet are black?