Question
Yesterday, Mark had 47 as many blue as purple marbles. He sold 15 of his purple marbles today. Now, he has twice as many blue as purple marbles. How many marbles did he have altogether yesterday?
4 m

Click button first when a symbol is required. X

Yesterday, Mark had 47 as many blue as purple marbles. He sold 15 of his purple marbles today. Now, he has twice as many blue as purple marbles. How many marbles did he have altogether yesterday?