Question
Japheth is 8 kg heavier than Xavier and 4 kg heavier than Daniel. The average mass of the 3 men is 76 kg. Find the average mass of Xavier and Daniel.
2 m

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Japheth is 8 kg heavier than Xavier and 4 kg heavier than Daniel. The average mass of the 3 men is 76 kg. Find the average mass of Xavier and Daniel.