Question
PSLE
The mass of a container with 43 identical balls is 749 g. When 21 of the balls are used, the mass of the container with the remaining balls is 434 g. What is the mass of each ball?
2 m

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PSLE
The mass of a container with 43 identical balls is 749 g. When 21 of the balls are used, the mass of the container with the remaining balls is 434 g. What is the mass of each ball?