document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1203735>Question 1203735</A>: <I><SPAN STYLE=\"word-break: break-all;\"> The sum of Jess, Sam and Mindy’s ages is 42. Jess is younger than Sam, but older than Mindy. Sam<BR>\n" );
document.write( "is twice as old as Mindy, who is the youngest out of the three by 6 years. If Jess is 15 years old, how<BR>\n" );
document.write( "old are Sam and Mindy? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #839537 by </B><A HREF=/tutors/aboutme.mpl?userid=greenestamps><B>greenestamps(13200)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=greenestamps><IMG SRC=http://www.algebra.com/images/aboutme-small.gif BORDER=0 alt=\"About Me\" VALIGN=MIDDLE></A>&nbsp;<IMG SRC=http://www.algebra.com/cgi-bin/show-face.mpl?user=greenestamps><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=839537\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> <br><BR>\n" );
document.write( "The given fact that the sum of their ages is not needed; the problem can be solved with the other information.<br><BR>\n" );
document.write( "Jess is 15.<BR>\n" );
document.write( "Jess is younger than Sam and older than Mindy.<BR>\n" );
document.write( "Mindy is the youngest, by 6 years, so Mindy is 15-6 = 9.<BR>\n" );
document.write( "Sam is twice as old as Mindy, so he is 9*2 = 18.<br><BR>\n" );
document.write( "Yes, the sum of their ages is 15+9+18 = 42 -- but we didn't need that information to solve the problem.<br><BR>\n" );
document.write( "ANSWER: Mindy is 9, Sam is 18<br><BR>\n" );
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document.write( "Note the solution from tutor @josgarithmetic uses an equation that says Mindy is 6 years younger than Sam, which is not correct, leading of course to a wrong solution.  The tutor should have realized the solution was wrong, since the sum of the ages he ended up with is not 42.<br><BR>\n" );
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