Question
PSLE
Tiffany had a basket of black marbles and silver marbles in the ratio 16 : 9. She removed an equal number of black marbles and silver marbles from the basket. The ratio of the number of black marbles and silver marbles left in the basket became 10 : 3. What percentage of the marbles were left in the basket?
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PSLE
Tiffany had a basket of black marbles and silver marbles in the ratio 16 : 9. She removed an equal number of black marbles and silver marbles from the basket. The ratio of the number of black marbles and silver marbles left in the basket became 10 : 3. What percentage of the marbles were left in the basket?