At present , the sum of ages of ruby and her daughter is 49. seven years ago ruby was six times as old as her daughter . find their present ages
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Let the present age of ruby and her daughter be x and 49-x respectively.
Age seven yrs ago = x-7, 49-x-7
According to question,
(x-7)6= 49-x-7
6x-42=42-x
7x=84x
x=12
So, present age of ruby=49-12=37 yrs
Present age of her daughter = 12 yrs
Age seven yrs ago = x-7, 49-x-7
According to question,
(x-7)6= 49-x-7
6x-42=42-x
7x=84x
x=12
So, present age of ruby=49-12=37 yrs
Present age of her daughter = 12 yrs
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