document.write( "Question 885967: A MAN IS 3 TIMES AS OLD AS HIS SON,4 YEARS AGO,THE SUM OF THEIR AGES WAS 24.FIND THEIR PRESENT AGES \n" ); document.write( "
Algebra.Com's Answer #535587 by pj66(7)\"\" \"About 
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Let x be the present age of son.
\n" ); document.write( "=> father's age = 3*x
\n" ); document.write( "Four years ago,
\n" ); document.write( "father's age = 3*x - 4 and son's age = x-4
\n" ); document.write( "Sum of their ages is 24
\n" ); document.write( "=> 3*x-4+x-4=24
\n" ); document.write( "=> 4*x-8=24
\n" ); document.write( "=> 4*x=32
\n" ); document.write( "=> x=8
\n" ); document.write( "Hence, father's present age is 24.
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