Question
PSLE
The mass of a box with 66 identical beads is 911 g. When 23 of the beads are taken out, the mass of the box with the remaining beads is 520 g. What is the mass of each bead?
2 m

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PSLE
The mass of a box with 66 identical beads is 911 g. When 23 of the beads are taken out, the mass of the box with the remaining beads is 520 g. What is the mass of each bead?