Question
PSLE
Ivory had a basket of yellow marbles and white marbles in the ratio 13 : 7. She removed an equal number of yellow marbles and white marbles from the basket. The ratio of the number of yellow marbles and white marbles left in the basket became 6 : 1. What percentage of the marbles were left in the basket?
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PSLE
Ivory had a basket of yellow marbles and white marbles in the ratio 13 : 7. She removed an equal number of yellow marbles and white marbles from the basket. The ratio of the number of yellow marbles and white marbles left in the basket became 6 : 1. What percentage of the marbles were left in the basket?