Question
PSLE
Gwen had a box of white balls and yellow balls in the ratio 17 : 8. She removed an equal number of white balls and yellow balls from the box. The ratio of the number of white balls and yellow balls left in the box became 10 : 1. What percentage of the balls were left in the box?
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PSLE
Gwen had a box of white balls and yellow balls in the ratio 17 : 8. She removed an equal number of white balls and yellow balls from the box. The ratio of the number of white balls and yellow balls left in the box became 10 : 1. What percentage of the balls were left in the box?