document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=567277>Question 567277</A>: <I><SPAN STYLE=\"word-break: break-all;\"> the average of 3 numbers is 63. What is the value of a fourth number x if the average of the four numbers is 60? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #366493 by </B><A HREF=/tutors/aboutme.mpl?userid=htmentor><B>htmentor(1343)</B></A><img src=\"/images/stars/stars-12.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=htmentor><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=htmentor><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=366493\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> the average of 3 numbers is 63. What is the value of a fourth number x if the average of the four numbers is 60?<BR>\n" );
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document.write( "Let S = the sum of the 3 numbers<BR>\n" );
document.write( "Then the average of the 3 numbers = 63 = S/3 -> S = 189<BR>\n" );
document.write( "When the fourth number, x, is added the average = (S+x)/4 = 60<BR>\n" );
document.write( "189+x = 240<BR>\n" );
document.write( "x = 51 </SPAN>\n" );
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