SOLUTION: A child is 13 years old and his mother is 38 years old. When was their product of their ages 79 ?

SOLUTION: A child is 13 years old and his mother is 38 years old. When was their product of their ages 79 ?

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Question 805031: A child is 13 years old and his mother is 38 years old. When was their product of their ages 79 ?
Answer by richwmiller(17219) (Show Source): You can put this solution on YOUR website!
(13-x)*(38-x)=79
never
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