document.write( "Question 1141112: My puzzle: A father’s age is 4 times than his son. After 10 years, son’s age becomes 0 (zero). How? \n" ); document.write( "

Algebra.Com's Answer #761657 by josgarithmetic(39620) $\"\"$ $\"About$

You can put this solution on YOUR website!
The description seems unrealistic.\r
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\n" ); document.write( "\n" ); document.write( "4x, Father
\n" ); document.write( "x, Son
\n" ); document.write( "In ten years, x=0, not realistic\r
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\n" ); document.write( "\n" ); document.write( " $\"x%2B10=0\"$
\n" ); document.write( " $\"x=-10\"$
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\n" ); document.write( " $\"4x=-40\"$
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\n" ); document.write( "\n" ); document.write( "No sensible meaning. Father would be at any time, of less age than son, which is nonsense. $\"-40%3C-10\"$ .\r
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\n" ); document.write( "\n" ); document.write( "Nonsense. \n" ); document.write( "

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