Question
PSLE
The average mass of 3 boys, Bryan, David, Christian, is 44 kg. Bryan is heavier than David by 8 kg. The total mass of Bryan and David is the same as the mass of Christian. What is the mass of Christian?
2 m

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PSLE
The average mass of 3 boys, Bryan, David, Christian, is 44 kg. Bryan is heavier than David by 8 kg. The total mass of Bryan and David is the same as the mass of Christian. What is the mass of Christian?