Question
PSLE
A box contained red marbles and pink marbles. 30% of the marbles were pink. After some silver marbles were added to the box, 15% of the marbles were pink. What percentage of the marbles in the box were silver?
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PSLE
A box contained red marbles and pink marbles. 30% of the marbles were pink. After some silver marbles were added to the box, 15% of the marbles were pink. What percentage of the marbles in the box were silver?