Question
PSLE
A box contained brown marbles and pink marbles. 70% of the marbles were pink. After some blue marbles were added to the box, 35% of the marbles were pink. What percentage of the marbles in the box were blue?
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PSLE
A box contained brown marbles and pink marbles. 70% of the marbles were pink. After some blue marbles were added to the box, 35% of the marbles were pink. What percentage of the marbles in the box were blue?