document.write( "Question 757163: Mike is four times younger than Vanessa. Vanessa is three times as old as Sam. The sum of their ages is 52. How old is Mike? \n" ); document.write( "
Algebra.Com's Answer #460662 by sachi(548)\"\" \"About 
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Mike is four times(should be years) younger than Vanessa. Vanessa is three times as old as Sam.
\n" ); document.write( "let sam is x yrs then Vanessa is 3x yrs & mike is 3x-4
\n" ); document.write( "The sum of their ages is 52.
\n" ); document.write( "so x+3x+3x-4=52
\n" ); document.write( "or 7x=52+4=56
\n" ); document.write( "or x=8yrs
\n" ); document.write( "so Mike is 3*8-4=20 yrs
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