Question
PSLE
Zoe had a bag of brown balls and white balls in the ratio 16 : 9. She removed an equal number of brown balls and white balls from the bag. The ratio of the number of brown balls and white balls left in the bag became 5 : 1. What percentage of the balls were left in the bag?
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PSLE
Zoe had a bag of brown balls and white balls in the ratio 16 : 9. She removed an equal number of brown balls and white balls from the bag. The ratio of the number of brown balls and white balls left in the bag became 5 : 1. What percentage of the balls were left in the bag?