Question
PSLE
Sabrina had a basket of blue marbles and black marbles in the ratio 16 : 9. She removed an equal number of blue marbles and black marbles from the basket. The ratio of the number of blue marbles and black marbles left in the basket became 8 : 1. What percentage of the marbles were left in the basket?
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PSLE
Sabrina had a basket of blue marbles and black marbles in the ratio 16 : 9. She removed an equal number of blue marbles and black marbles from the basket. The ratio of the number of blue marbles and black marbles left in the basket became 8 : 1. What percentage of the marbles were left in the basket?