document.write( "Question 1072398: There is three Persons grandson, father and grandfather and their aggrigated age is 140 . Grandfather is 12 times older than grandson and father is 7 times older than son . Find their different three ages . \n" ); document.write( "
Algebra.Com's Answer #687318 by ankor@dixie-net.com(22740)\"\" \"About 
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There is three Persons grandson, father and grandfather and their aggregated age is 140.
\n" ); document.write( "s + f + g = 140
\n" ); document.write( ":
\n" ); document.write( "Grandfather is 12 times older than grandson
\n" ); document.write( "g = 12s
\n" ); document.write( " and father is 7 times older than son.
\n" ); document.write( "f = 7s
\n" ); document.write( " Find their different three ages.
\n" ); document.write( "In the first equation, replace g with 12s, and replace f with 7s
\n" ); document.write( "s + 7s + 12s = 140
\n" ); document.write( "20s = 140
\n" ); document.write( "s = 140/20
\n" ); document.write( "s = 7 yrs is the grandson's age
\n" ); document.write( ":
\n" ); document.write( "I'll let you find g and f, ensure that the ages add up to 140 \n" ); document.write( "
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