Question
PSLE
Tina had a box of purple balls and brown balls in the ratio 17 : 8. She removed an equal number of purple balls and brown balls from the box. The ratio of the number of purple balls and brown balls left in the box became 7 : 3. What percentage of the balls were left in the box?
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PSLE
Tina had a box of purple balls and brown balls in the ratio 17 : 8. She removed an equal number of purple balls and brown balls from the box. The ratio of the number of purple balls and brown balls left in the box became 7 : 3. What percentage of the balls were left in the box?