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