document.write( "Question 1124592: Happy is four times as old as Grumpy. The sum of their age is 100. How old are Happy and Grumpy?
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Algebra.Com's Answer #740904 by mastergerwe(4)\"\" \"About 
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let Grumpy = x\r
\n" ); document.write( "\n" ); document.write( "4x+x =100
\n" ); document.write( "5x=100\r
\n" ); document.write( "\n" ); document.write( "x=20
\n" ); document.write( "100-20=80
\n" ); document.write( "Happy = 80
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