document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1045433>Question 1045433</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A school has 20 teachers, one of them retires at the age of 60 years and a new teacher replaces him, this change reduces\r<BR>\n" );
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document.write( "the average age of the staff by 2 years, the age of new teacher is: </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #660874 by </B><A HREF=/tutors/aboutme.mpl?userid=stanbon><B>stanbon(75887)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=stanbon><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/images/nopicture.jpg><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=660874\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\">  A school has 20 teachers, one of them retires at the age of 60 years and a new teacher replaces him, this change reduces <BR>\n" );
document.write( "the average age of the staff by 2 years, the age of new teacher is: <BR>\n" );
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document.write( "Original average of the 20 teachers:: \"a\"<BR>\n" );
document.write( "Sum of their ages = 20a<BR>\n" );
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document.write( "After one retires::<BR>\n" );
document.write( "Sum of the 19 teachers ages:: 20a-60<BR>\n" );
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document.write( "Let the new teachers age be \"t\"<BR>\n" );
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document.write( "Equation::<BR>\n" );
document.write( "original average - new average age = 2 years<BR>\n" );
document.write( "a - [20a-60+t]/20 = 2<BR>\n" );
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document.write( "20a - 20a + 60 - t = 40<BR>\n" );
document.write( "t = 20 yrs ( new teacher's age)<BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H.<BR>\n" );
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document.write( " </SPAN>\n" );
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