Question
Yesterday, Ivan had 47 as many grey as purple marbles. He sold 40 of his purple marbles today. Now, he has twice as many grey as purple marbles. How many marbles did he have altogether yesterday?
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Yesterday, Ivan had 47 as many grey as purple marbles. He sold 40 of his purple marbles today. Now, he has twice as many grey as purple marbles. How many marbles did he have altogether yesterday?