Question
PSLE
A box contained purple balls and red balls. 40% of the balls were red. After some gold balls were added to the box, 16% of the balls were red. What percentage of the balls in the box were gold?
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PSLE
A box contained purple balls and red balls. 40% of the balls were red. After some gold balls were added to the box, 16% of the balls were red. What percentage of the balls in the box were gold?