document.write( "Question 257629: Pat and Chris have the same birthday. Pat is twice as old as Chris was when Pat was as old as Chris is now. If Pat is now 24 years old, how old is Chris? \n" ); document.write( "
Algebra.Com's Answer #189538 by richwmiller(17219)![]() ![]() You can put this solution on YOUR website! http://mathforum.org/library/drmath/view/57277.html \n" ); document.write( "from that website \n" ); document.write( "\"Now, if Pat is 24, then Chris was 12 (half Pat's current age) at some \n" ); document.write( "point in the past. That point was when Pat was as old as Chris is now. \r \n" ); document.write( "\n" ); document.write( "Restating it, some number of years ago - let's call it x - Chris was \n" ); document.write( "12 and Pat was Chris's current age.\" \n" ); document.write( "24-x=12+x \n" ); document.write( "12=2x \n" ); document.write( "6=x \n" ); document.write( "24-6=18 Chris's age \n" ); document.write( "12+6=18\r \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " |