Question
PSLE
A box contained green balls and yellow balls. 60% of the balls were yellow. After some pink balls were added to the box, 39% of the balls were yellow. What percentage of the balls in the box were pink?
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PSLE
A box contained green balls and yellow balls. 60% of the balls were yellow. After some pink balls were added to the box, 39% of the balls were yellow. What percentage of the balls in the box were pink?