Question
Yesterday, Japheth had 67 as many black as yellow balls. He sold 25 of his yellow balls today. Now, he has thrice as many black as yellow balls. How many balls did he have altogether yesterday?
4 m

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Yesterday, Japheth had 67 as many black as yellow balls. He sold 25 of his yellow balls today. Now, he has thrice as many black as yellow balls. How many balls did he have altogether yesterday?