document.write( "Question 1177103: Happy is four times as old as Grumpy. The sum of their age is 100.
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Algebra.Com's Answer #805328 by mananth(16946)\"\" \"About 
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\n" ); document.write( "let grumpy's age be x years
\n" ); document.write( "Happy's age will be 4x\r
\n" ); document.write( "\n" ); document.write( "4x+x =100\r
\n" ); document.write( "\n" ); document.write( "5x =100
\n" ); document.write( "x=20\r
\n" ); document.write( "\n" ); document.write( "Grumpy's age 20 years
\n" ); document.write( "Happy's age 4x = 80 years
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