Question
PSLE
A box contained silver balls and blue balls. 30% of the balls were blue. After some pink balls were added to the box, 9% of the balls were blue. What percentage of the balls in the box were pink?
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PSLE
A box contained silver balls and blue balls. 30% of the balls were blue. After some pink balls were added to the box, 9% of the balls were blue. What percentage of the balls in the box were pink?