Question
A box filled with 6 identical marbles weighs 1190 g. The same box when filled with 3 identical balls weighs 650 g. The mass of each marble is three times the mass of each ball. What is the mass of the box?
4 m

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A box filled with 6 identical marbles weighs 1190 g. The same box when filled with 3 identical balls weighs 650 g. The mass of each marble is three times the mass of each ball. What is the mass of the box?