Question
PSLE
Gillian had a box of blue balls and pink balls in the ratio 17 : 8. She removed an equal number of blue balls and pink balls from the box. The ratio of the number of blue balls and pink balls left in the box became 4 : 1. What percentage of the balls were left in the box?
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PSLE
Gillian had a box of blue balls and pink balls in the ratio 17 : 8. She removed an equal number of blue balls and pink balls from the box. The ratio of the number of blue balls and pink balls left in the box became 4 : 1. What percentage of the balls were left in the box?