Question
PSLE
A box contained black beads and green beads. 40% of the beads were green. After some yellow beads were added to the box, 20% of the beads were green. What percentage of the beads in the box were yellow?
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PSLE
A box contained black beads and green beads. 40% of the beads were green. After some yellow beads were added to the box, 20% of the beads were green. What percentage of the beads in the box were yellow?