document.write( "Question 1147986: Ben is r years old. His sister is three times as old as he is. How old is his sister \n" ); document.write( "

Algebra.Com's Answer #769344 by ikleyn(52803) $\"\"$ $\"About$

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document.write( "His sister is  r + r + r = 3r  years old.\r\n" );
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