Question
PSLE
Marion had a box of yellow balls and purple balls in the ratio 17 : 8. She removed an equal number of yellow balls and purple balls from the box. The ratio of the number of yellow balls and purple balls left in the box became 5 : 2. What percentage of the balls were left in the box?
2 m

Click button first when a symbol is required. X

PSLE
Marion had a box of yellow balls and purple balls in the ratio 17 : 8. She removed an equal number of yellow balls and purple balls from the box. The ratio of the number of yellow balls and purple balls left in the box became 5 : 2. What percentage of the balls were left in the box?