document.write( "Question 973912: A boy is 8 years old and his sister is twice his age if the boy turn 12 years old how old would his sister be \n" ); document.write( "

Algebra.Com's Answer #854494 by josgarithmetic(39823) $\"\"$ $\"About$

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Boy is 8, then his sister is 16. Age difference is 8 no matter when.\r
\n" ); document.write( "\n" ); document.write( "If the boy turned 12, then sister is still 8 years older. She then becomes 20. \n" ); document.write( "

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