Question
PSLE
Winnie had a bag of blue beads and black beads in the ratio 13 : 7. She removed an equal number of blue beads and black beads from the bag. The ratio of the number of blue beads and black beads left in the bag became 9 : 4. What percentage of the beads were left in the bag?
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PSLE
Winnie had a bag of blue beads and black beads in the ratio 13 : 7. She removed an equal number of blue beads and black beads from the bag. The ratio of the number of blue beads and black beads left in the bag became 9 : 4. What percentage of the beads were left in the bag?