Question
PSLE
A box contained gold marbles and green marbles. 70% of the marbles were green. After some red marbles were added to the box, 63% of the marbles were green. What percentage of the marbles in the box were red?
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PSLE
A box contained gold marbles and green marbles. 70% of the marbles were green. After some red marbles were added to the box, 63% of the marbles were green. What percentage of the marbles in the box were red?