Question
PSLE
Rachel had a bag of pink balls and green balls in the ratio 16 : 9. She removed an equal number of pink balls and green balls from the bag. The ratio of the number of pink balls and green balls left in the bag became 9 : 5. What percentage of the balls were left in the bag?
2 m

Click button first when a symbol is required. X

PSLE
Rachel had a bag of pink balls and green balls in the ratio 16 : 9. She removed an equal number of pink balls and green balls from the bag. The ratio of the number of pink balls and green balls left in the bag became 9 : 5. What percentage of the balls were left in the bag?