Question
Mark bought 3 bags of marbles. In each bag, there were 20 marbles. He used 3 of the marbles and gave some of them to his cousin. 15 of his marbles were then left. What fraction of the marbles he bought were given to his cousin?
4 m

Click button first when a symbol is required. X

Mark bought 3 bags of marbles. In each bag, there were 20 marbles. He used 3 of the marbles and gave some of them to his cousin. 15 of his marbles were then left. What fraction of the marbles he bought were given to his cousin?