document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=750173>Question 750173</A>: <I><SPAN STYLE=\"word-break: break-all;\"> If the average of marks of four student be 62,  mark of one student is 1 less then the average,mark of second student is 7 more then average,mark of third student is 1 less then the average then find the mark of fourth student. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #456412 by </B><A HREF=/tutors/aboutme.mpl?userid=FrankM><B>FrankM(1040)</B></A><img src=\"/images/stars/stars-12.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=FrankM><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=FrankM><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=456412\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> You have -1,+7,-1 and need to find a 4th number that zeroes out the differences. <BR>\n" );
document.write( "7-1-1 = 5 \r<BR>\n" );
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document.write( "and x-1, x+7, x-1, x-5 will average to x \r<BR>\n" );
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document.write( "You can substitute 62 for x to confirm, but this approach works regardless of the base number. We can answer without even knowing that average.  </SPAN>\n" );
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