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10 years ago, the ratio of daughter and mother was 1:7. After 10 years, the ratio of the ages would be 1:2. Find the present age of daughter.

 Jun 16, 2020
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D= daught age now.     10 years ago.    D-10.     And mother was M-10= 7 (D-10)

 

NOW.     M= 2D.      Sub this into the fjest equation

2D - 10 = 7D-70

60=5D.      D = 12.    


 Then M = 2D= 24.   ( Mom was preggo @ 11 y/o ! )

 Jun 16, 2020

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