Question
Archie has some green and pink balls. The total mass of all his balls is 220 g. He has 3 less green balls than pink balls. The average mass of the green balls is 6 g. The average mass of the pink balls is 8 g. How many balls does Archie have altogether?
3 m

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Archie has some green and pink balls. The total mass of all his balls is 220 g. He has 3 less green balls than pink balls. The average mass of the green balls is 6 g. The average mass of the pink balls is 8 g. How many balls does Archie have altogether?