Question
The total age of Japheth and his uncle is 70 years now. Japheth's uncle is 4 times as old as her son. How old will Japheth be in 12 years' time?
4 m

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The total age of Japheth and his uncle is 70 years now. Japheth's uncle is 4 times as old as her son. How old will Japheth be in 12 years' time?