Question
When 910 of a cup is filled with coffee, it weighs 850 g. When the cup is half-filled with coffee, it weighs 650 g. Find the mass of the empty cup.
4 m

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When 910 of a cup is filled with coffee, it weighs 850 g. When the cup is half-filled with coffee, it weighs 650 g. Find the mass of the empty cup.