SOLUTION: A boy is 12 years older than his sister. If in 4 years time he will be twice her age, what are their present ages?
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Question 1174970: A boy is 12 years older than his sister. If in 4 years time he will be twice her age, what are their present ages?
Answer by josgarithmetic(39625) (Show Source): You can put this solution on YOUR website!
b and b-12
Boy and sister
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