Question
Yesterday, David had 67 as many yellow as pink marbles. He sold 55 of his pink marbles today. Now, he has thrice as many yellow as pink marbles. How many marbles did he have altogether yesterday?
4 m

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Yesterday, David had 67 as many yellow as pink marbles. He sold 55 of his pink marbles today. Now, he has thrice as many yellow as pink marbles. How many marbles did he have altogether yesterday?