document.write( "Question 1123818: the sum of the ages of three sisters is 64. the age of the oldest is twice the age of the youngest. the ages of the two older sisters is a difference of six years. what is the age of the youngest sister?
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\n" ); document.write( "the sum of the ages of three sisters is 64. the age of the oldest is twice the age of the youngest. the ages of the two older sisters is a difference of six years. what is the age of the youngest sister?
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Let the youngest’s age be Y
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document.write( "Then oldest’s is 2Y
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document.write( "Also, middle sister’s is: 2Y - 6 
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document.write( "We then get: Y + 2Y + 2Y – 6 = 64
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document.write( "5Y = 70
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document.write( "Y, or youngest is:  \n" );
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