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