Question
PSLE
Pamela had a box of grey beads and green beads in the ratio 17 : 7. She removed an equal number of grey beads and green beads from the box. The ratio of the number of grey beads and green beads left in the box became 7 : 2. What percentage of the beads were left in the box?
2 m

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PSLE
Pamela had a box of grey beads and green beads in the ratio 17 : 7. She removed an equal number of grey beads and green beads from the box. The ratio of the number of grey beads and green beads left in the box became 7 : 2. What percentage of the beads were left in the box?