document.write( "Question 900952: A person says that his son is 5 times as old as his daughter and his wife is 5 times older than his son and he is twice the age of his wife . The sum total of all the ages equals the age of the grand mother who celebrated her 81st birthday today.
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document.write( "How old was his son?\r
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Algebra.Com's Answer #546327 by tana(1)![]() ![]() You can put this solution on YOUR website! Taking the daughter's age to be x, we get \n" ); document.write( "the son's age to be 5x \n" ); document.write( "the wife's age to be 25x and \n" ); document.write( "the his age to be 50x. \n" ); document.write( "So according to question, \n" ); document.write( " x + 5x + 25x + 50x = 81 \n" ); document.write( "or, 81x = 81 \n" ); document.write( "or, x = 1 \n" ); document.write( "Thus, the age of the son is 5 years old. \n" ); document.write( " |