Question
PSLE
A box contained gold marbles and brown marbles. 30% of the marbles were brown. After some silver marbles were added to the box, 27% of the marbles were brown. What percentage of the marbles in the box were silver?
2 m

Click button first when a symbol is required. X

PSLE
A box contained gold marbles and brown marbles. 30% of the marbles were brown. After some silver marbles were added to the box, 27% of the marbles were brown. What percentage of the marbles in the box were silver?