Mathematics, 31.01.2020 19:50 sloane50

Bill, phil and jenny are siblings. bill is twice as old as phil. jenny is two years younger than bill. currently their dad is twice as old as the sum of their ages. in nine years, dad's new age will be equal to the sum o his three kids new ages. what is jenny's current age.
i really need so if someone could plz me that would be great.

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Bill, phil and jenny are siblings. bill is twice as old as phil. jenny is two years younger than bil...

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