Question
PSLE
Emily had a box of grey marbles and brown marbles in the ratio 17 : 8. She removed an equal number of grey marbles and brown marbles from the box. The ratio of the number of grey marbles and brown marbles left in the box became 4 : 1. What percentage of the marbles were left in the box?
2 m

Click button first when a symbol is required. X

PSLE
Emily had a box of grey marbles and brown marbles in the ratio 17 : 8. She removed an equal number of grey marbles and brown marbles from the box. The ratio of the number of grey marbles and brown marbles left in the box became 4 : 1. What percentage of the marbles were left in the box?