document.write( "Question 517504: Mary is half as old as Tom. George is 3 years older than tom. The sum of Mary,tom,and george's ages is 58..How old is tom? \n" ); document.write( "
Algebra.Com's Answer #344839 by Maths68(1474)\"\" \"About 
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Let
\n" ); document.write( "Present age of George = g
\n" ); document.write( "Present age of Tom =t
\n" ); document.write( "Present age of Mary = m\r
\n" ); document.write( "\n" ); document.write( "Mary is half as old as Tom
\n" ); document.write( "m=1/2*t
\n" ); document.write( "m=t/2...............(1)
\n" ); document.write( "George is 3 years older than tom
\n" ); document.write( "g=t+3...............(2)
\n" ); document.write( "The sum of Mary,tom,and george's ages is 58
\n" ); document.write( "g+t+m=58
\n" ); document.write( "Put the value of g and m in above euqation
\n" ); document.write( "(t+3)+t+(t/2)=58
\n" ); document.write( "t+3+t+(t/2)=58
\n" ); document.write( "Multiply by 2 both sides
\n" ); document.write( "2*(t+3+t+(t/2))=2*58
\n" ); document.write( "2t+6+2t+t=116
\n" ); document.write( "5t=116-6
\n" ); document.write( "5t=110
\n" ); document.write( "5t/5=110/5
\n" ); document.write( "t=22\r
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\n" ); document.write( "\n" ); document.write( "Tom is 22 years old\r
\n" ); document.write( "\n" ); document.write( "For George and Mary's age put the value of t in (1) and (2)
\n" ); document.write( "m=t/2=22/2=11
\n" ); document.write( "g=22+3=25\r
\n" ); document.write( "\n" ); document.write( "George is 25 and Mary is 11 years old
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