Question
PSLE
Jane had a basket of green marbles and white marbles in the ratio 13 : 7. She removed an equal number of green marbles and white marbles from the basket. The ratio of the number of green marbles and white marbles left in the basket became 9 : 4. What percentage of the marbles were left in the basket?
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PSLE
Jane had a basket of green marbles and white marbles in the ratio 13 : 7. She removed an equal number of green marbles and white marbles from the basket. The ratio of the number of green marbles and white marbles left in the basket became 9 : 4. What percentage of the marbles were left in the basket?