Question
Albert has some grey and pink balls. The total mass of all his balls is 226 g. He has 5 more pink balls than grey balls. The average mass of the grey balls is 10 g. The average mass of the pink balls is 13 g. How many balls does Albert have altogether?
3 m

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Albert has some grey and pink balls. The total mass of all his balls is 226 g. He has 5 more pink balls than grey balls. The average mass of the grey balls is 10 g. The average mass of the pink balls is 13 g. How many balls does Albert have altogether?