Question
Yesterday, David had 45 as many brown as grey balls. He sold 27 of his grey balls today. Now, he has twice as many brown as grey balls. How many balls did he have altogether yesterday?
4 m

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Yesterday, David had 45 as many brown as grey balls. He sold 27 of his grey balls today. Now, he has twice as many brown as grey balls. How many balls did he have altogether yesterday?