document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=281597>Question 281597</A>: <I><SPAN STYLE=\"word-break: break-all;\"> The average of 11 numbers is 21 . The average of seven of those numbers is 25. What is the average of the remaining four numbers?\r<BR>\n" );
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document.write( "Please show me step by step how to solve this problem<BR>\n" );
document.write( "Thanks  </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #204562 by </B><A HREF=/tutors/aboutme.mpl?userid=Alan3354><B>Alan3354(69443)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Alan3354><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=Alan3354><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=204562\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> The average of 11 numbers is 21 . The average of seven of those numbers is 25. What is the average of the remaining four numbers?<BR>\n" );
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document.write( "average = sum/(# of elements)<BR>\n" );
document.write( "--> sum = n*average<BR>\n" );
document.write( "sum1 = 11*21 = 231<BR>\n" );
document.write( "sum2 = 7*25 = 175<BR>\n" );
document.write( "------------------- Subtract<BR>\n" );
document.write( "4 numbers total 56<BR>\n" );
document.write( "Their avg = 56/4 = 14<BR>\n" );
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