Question
PSLE
Pamela had a box of pink marbles and yellow marbles in the ratio 16 : 9. She removed an equal number of pink marbles and yellow marbles from the box. The ratio of the number of pink marbles and yellow marbles left in the box became 9 : 1. What percentage of the marbles were left in the box?
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PSLE
Pamela had a box of pink marbles and yellow marbles in the ratio 16 : 9. She removed an equal number of pink marbles and yellow marbles from the box. The ratio of the number of pink marbles and yellow marbles left in the box became 9 : 1. What percentage of the marbles were left in the box?