document.write( "Question 973364: John is three times as old as his son jack, and the sum of their ages is 48, how old is John? \n" ); document.write( "

Algebra.Com's Answer #595563 by amarjeeth123(570) $\"\"$ $\"About$

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Let Jack's age be x.
\n" ); document.write( "Then John's age is 3x.
\n" ); document.write( "sum of their ages is 48
\n" ); document.write( "x+3x=48
\n" ); document.write( "4x=48
\n" ); document.write( "x=12
\n" ); document.write( "John's age=3(12)=36
\n" ); document.write( "John's age is 36.
\n" ); document.write( " \n" ); document.write( "

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