Question
Zane is 8 kg heavier than Ken and 4 kg heavier than Peter. The average mass of the 3 men is 77 kg. Find the average mass of Ken and Peter.
2 m

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Zane is 8 kg heavier than Ken and 4 kg heavier than Peter. The average mass of the 3 men is 77 kg. Find the average mass of Ken and Peter.