Question
PSLE
The mass of a container with 70 identical marbles is 808 g. When 21 of the marbles are set aside, the mass of the container with the remaining marbles is 430 g. What is the mass of each marble?
2 m

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PSLE
The mass of a container with 70 identical marbles is 808 g. When 21 of the marbles are set aside, the mass of the container with the remaining marbles is 430 g. What is the mass of each marble?