Question
PSLE
The mass of a container with 59 identical balls is 842 g. When 23 of the balls are used, the mass of the container with the remaining balls is 497 g. What is the mass of each ball?
2 m

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PSLE
The mass of a container with 59 identical balls is 842 g. When 23 of the balls are used, the mass of the container with the remaining balls is 497 g. What is the mass of each ball?