document.write( "Question 873383: Marla's Grandma is currently 3 times older than Marla, but 25 years
\n" ); document.write( " from now Marla will be half her Grandma's age. How old is the
\n" ); document.write( " Grandma right now?
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Algebra.Com's Answer #526834 by Alan3354(69443)\"\" \"About 
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Marla's Grandma is currently 3 times older than Marla, but 25 years
\n" ); document.write( " from now Marla will be half her Grandma's age. How old is the
\n" ); document.write( " Grandma right now?
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\n" ); document.write( "Now, G = 4M
\n" ); document.write( "In 25 years:
\n" ); document.write( "G + 25 = 2*(M + 25)
\n" ); document.write( "Sub for G
\n" ); document.write( "4M + 25 = 2M + 50
\n" ); document.write( "2M = 25
\n" ); document.write( "M = 12.5
\n" ); document.write( "G = 50 now
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\n" ); document.write( "It's a non-integer answer, because 3 times older is not 3 times as old.
\n" ); document.write( "3 times older = 4 times as old.
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\n" ); document.write( "1 times older = 2x as old. If 1x older = 1x as old, then it's not older.
\n" ); document.write( "Or,
\n" ); document.write( "1 times older = a 100% increase, right? --> 2x as old\r
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