A mother is 20 years older than her daughter,4years before she was 5 times of her daughters age at that time how old is the daughter now?

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  • 9 year is right
    0
  • Let the age of daughter be X years. 
    A mother is 20 years older than her daughter, 
    Then, the age of mother = ( X + 20) years
    4 years before she was 5 times of her daughter’s age at the time, 
     (X + 20) – 4 = 5 (X – 4) 
    X + 20  – 4 = 5 X – 20 
    5 X – X = 16 + 20 
    4 X = 36 
    X = 36/4
    X = 9 
    Then, the age of daughter is 9 years. 
    2
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