Question
PSLE
The mass of a container with 56 identical balls is 1058 g. When 30 of the balls are sold, the mass of the container with the remaining balls is 518 g. What is the mass of each ball?
2 m

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PSLE
The mass of a container with 56 identical balls is 1058 g. When 30 of the balls are sold, the mass of the container with the remaining balls is 518 g. What is the mass of each ball?