Question
PSLE
The mass of a container with 60 identical balls is 855 g. When 28 of the balls are given away, the mass of the container with the remaining balls is 351 g. What is the mass of each ball?
2 m

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PSLE
The mass of a container with 60 identical balls is 855 g. When 28 of the balls are given away, the mass of the container with the remaining balls is 351 g. What is the mass of each ball?