Question
PSLE
The mass of a box with 58 identical balls is 791 g. When 23 of the balls are thrown away, the mass of the box with the remaining balls is 446 g. What is the mass of each ball?
2 m

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PSLE
The mass of a box with 58 identical balls is 791 g. When 23 of the balls are thrown away, the mass of the box with the remaining balls is 446 g. What is the mass of each ball?