Question
PSLE
The average mass of 3 boys, Adam, Christian, Bryan, is 38 kg. Adam is heavier than Christian by 7 kg. The total mass of Adam and Christian is the same as the mass of Bryan. What is the mass of Bryan?
2 m

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PSLE
The average mass of 3 boys, Adam, Christian, Bryan, is 38 kg. Adam is heavier than Christian by 7 kg. The total mass of Adam and Christian is the same as the mass of Bryan. What is the mass of Bryan?