Question
Andy has some brown and green balls. The total mass of all his balls is 226 g. He has 5 more green balls than brown balls. The average mass of the brown balls is 6 g. The average mass of the green balls is 10 g. How many balls does Andy have altogether?
3 m

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Andy has some brown and green balls. The total mass of all his balls is 226 g. He has 5 more green balls than brown balls. The average mass of the brown balls is 6 g. The average mass of the green balls is 10 g. How many balls does Andy have altogether?