Question
PSLE
Joelle had a bag of black beads and gold beads in the ratio 16 : 9. She removed an equal number of black beads and gold beads from the bag. The ratio of the number of black beads and gold beads left in the bag became 7 : 3. What percentage of the beads were left in the bag?
2 m

Click button first when a symbol is required. X

PSLE
Joelle had a bag of black beads and gold beads in the ratio 16 : 9. She removed an equal number of black beads and gold beads from the bag. The ratio of the number of black beads and gold beads left in the bag became 7 : 3. What percentage of the beads were left in the bag?