Question
PSLE
The mass of a box with 40 identical balls is 740 g. When 28 of the balls are given away, the mass of the box with the remaining balls is 376 g. What is the mass of each ball?
2 m

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PSLE
The mass of a box with 40 identical balls is 740 g. When 28 of the balls are given away, the mass of the box with the remaining balls is 376 g. What is the mass of each ball?