Question
PSLE
Zoe had a basket of white marbles and brown marbles in the ratio 13 : 7. She removed an equal number of white marbles and brown marbles from the basket. The ratio of the number of white marbles and brown marbles left in the basket became 5 : 1. What percentage of the marbles were left in the basket?
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PSLE
Zoe had a basket of white marbles and brown marbles in the ratio 13 : 7. She removed an equal number of white marbles and brown marbles from the basket. The ratio of the number of white marbles and brown marbles left in the basket became 5 : 1. What percentage of the marbles were left in the basket?