Question
The total mass of John and Ken is 47.3 kg. The total mass of Ken and Harry is 57.1 kg. If the total mass of John and Harry is 55 kg, find the mass of Harry.
4 m

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The total mass of John and Ken is 47.3 kg. The total mass of Ken and Harry is 57.1 kg. If the total mass of John and Harry is 55 kg, find the mass of Harry.