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In the Act (Posted on 2002-11-25) Difficulty: 2 of 5
A mother is 21 years older than her son, and in 6 years time the son will be one fifth of her age.

Where is the father?

See The Solution Submitted by Cheradenine    
Rating: 3.7500 (12 votes)

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Solution Lol Comment 15 of 15 |
Let x=mother's age and y=son's age.

x=y+21
y+6=(x+6)/5
y+6=(y+27)/5
5y+30=y+27
4y=-3
y=-3/4
x=81/4

The son is -9 months old, so he is being conceived. Therefore, the father is having sex with the mother.


  Posted by Math Man on 2016-06-09 06:34:43
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