Question
PSLE
The mass of a container with 56 identical balls is 711 g. When 27 of the balls are used, the mass of the container with the remaining balls is 306 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 711 g. When 27 of the balls are used, the mass of the container with the remaining balls is 306 g. What is the mass of each ball?