Question
PSLE
Wendy had a basket of black beads and purple beads in the ratio 13 : 7. She removed an equal number of black beads and purple beads from the basket. The ratio of the number of black beads and purple beads left in the basket became 4 : 1. What percentage of the beads were left in the basket?
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PSLE
Wendy had a basket of black beads and purple beads in the ratio 13 : 7. She removed an equal number of black beads and purple beads from the basket. The ratio of the number of black beads and purple beads left in the basket became 4 : 1. What percentage of the beads were left in the basket?