Question
The mass of Japheth is 43 of Carl's mass. Carl's mass is 39 kg. Archie is 13 kg lighter than Japheth. What is the mass of Archie?
3 m

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The mass of Japheth is 43 of Carl's mass. Carl's mass is 39 kg. Archie is 13 kg lighter than Japheth. What is the mass of Archie?