Question
PSLE
The mass of a container with 60 identical marbles is 728 g. When 18 of the marbles are used, the mass of the container with the remaining marbles is 494 g. What is the mass of each marble?
2 m

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PSLE
The mass of a container with 60 identical marbles is 728 g. When 18 of the marbles are used, the mass of the container with the remaining marbles is 494 g. What is the mass of each marble?