Question
A box filled with 6 identical beads weighs 1170 g. The same box when filled with 2 identical marbles weighs 400 g. The mass of each bead is two times the mass of each marble. What is the mass of the box?
4 m

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A box filled with 6 identical beads weighs 1170 g. The same box when filled with 2 identical marbles weighs 400 g. The mass of each bead is two times the mass of each marble. What is the mass of the box?