Question
PSLE
Sarah had a basket of grey balls and green balls in the ratio 16 : 9. She removed an equal number of grey balls and green balls from the basket. The ratio of the number of grey balls and green balls left in the basket became 5 : 1. What percentage of the balls were left in the basket?
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PSLE
Sarah had a basket of grey balls and green balls in the ratio 16 : 9. She removed an equal number of grey balls and green balls from the basket. The ratio of the number of grey balls and green balls left in the basket became 5 : 1. What percentage of the balls were left in the basket?