document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=364073>Question 364073</A>: <I><SPAN STYLE=\"word-break: break-all;\"> What is the sum of the first eleven terms of the arithmetic sequence <BR>\n" );
document.write( "3, 5 1/2 , 8, ...... ?\r<BR>\n" );
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document.write( "a  28  b  143 1/2  c  154   d   170 1/2  e  175 \r<BR>\n" );
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document.write( " </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #259679 by </B><A HREF=/tutors/aboutme.mpl?userid=vasumathi><B>vasumathi(46)</B></A><img src=\"/images/stars/stars-07.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=vasumathi><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=259679\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Solution : The first term = 3<BR>\n" );
document.write( "so a = 3<BR>\n" );
document.write( "and the difference between the second and the first is<BR>\n" );
document.write( "5 1/2 - 3 = 2 1/2<BR>\n" );
document.write( "so d = 2 1/2 =  5/2<BR>\n" );
document.write( "the number of terms = 11<BR>\n" );
document.write( "so n = 11<BR>\n" );
document.write( "then the sum  of first eleven numbers of this series is as follows....<BR>\n" );
document.write( "S = (n/2)(2a + (n-1)d)<BR>\n" );
document.write( "S = 11/2 (2*3 + (11-1)*(5/2))<BR>\n" );
document.write( "S = 5.5 ( 6 +10 * 5/2)<BR>\n" );
document.write( "S = 5.5(6 +25)<BR>\n" );
document.write( "S = 5.5 * 31<BR>\n" );
document.write( "S = 170.5 = 170 1/2 <BR>\n" );
document.write( "So the choice \"d\" is correct </SPAN>\n" );
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