document.write( "Question 117423: A man lived a fourth of his life as a boy, a fifth as a young man and a third as an adult. He spent 13 years in his old age. How old was he when he died?: A man lived a fourth of his life as a boy, a fifth as a young man and a third as an adult. He spent 13 years in his old age. How old was he when he died? \n" ); document.write( "

Algebra.Com's Answer #85426 by josmiceli(19441) $\"\"$ $\"About$

You can put this solution on YOUR website!
Call his lifespan $\"s\"$
\n" ); document.write( " $\"%281%2F4%29s+%2B+%281%2F5%29s+%2B+%281%2F3%29s+%2B+13+=+s\"$
\n" ); document.write( " $\"%2815%2F60%29s+%2B+%2812%2F60%29s+%2B+%2820%2F60%29s+%2B+13+=+s\"$
\n" ); document.write( " $\"15s+%2B+12s+%2B+20s+%2B+13%2A60+=+60s\"$
\n" ); document.write( " $\"47s+%2B+780+=+60s\"$
\n" ); document.write( " $\"13s+=+780\"$
\n" ); document.write( " $\"s+=+60\"$ years old answer\r
\n" ); document.write( "\n" ); document.write( " \n" ); document.write( "

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