Question
PSLE
Jean had a box of red balls and grey balls in the ratio 13 : 9. She removed an equal number of red balls and grey balls from the box. The ratio of the number of red balls and grey balls left in the box became 8 : 3. What percentage of the balls were left in the box?
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PSLE
Jean had a box of red balls and grey balls in the ratio 13 : 9. She removed an equal number of red balls and grey balls from the box. The ratio of the number of red balls and grey balls left in the box became 8 : 3. What percentage of the balls were left in the box?