document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=824176>Question 824176</A>: <I><SPAN STYLE=\"word-break: break-all;\"> I need more detail solution:\r<BR>\n" );
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document.write( "A child has a bag full of little toy bricks each of dimensions 1cm x 1 cm x<BR>\n" );
document.write( "1cm and decides to build a little wall with them. He wants to have 2 bricks in the top<BR>\n" );
document.write( "row, 4 in the second row from the top, 6 in the third row from the top, and so on,<BR>\n" );
document.write( "always placing two more bricks in every row below. If he has a total of 950 little<BR>\n" );
document.write( "bricks, how tall can he make his wall? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #496366 by </B><A HREF=/tutors/aboutme.mpl?userid=milo1954><B>milo1954(10)</B></A><img src=\"/images/stars/stars-05.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=milo1954><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=496366\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> sequence 2,4,6,8....2n   (n numbers of rows)<BR>\n" );
document.write( "         <BR>\n" );
document.write( "adding<BR>\n" );
document.write( "         (2+2n)n/2<BR>\n" );
document.write( "let get approximate to 950<BR>\n" );
document.write( "        (2+2n)n/2=950<BR>\n" );
document.write( "        (2n + 2n^2)/2=950<BR>\n" );
document.write( "         n+n*n=950<BR>\n" );
document.write( "for n=30<BR>\n" );
document.write( "         30+30*30=930<BR>\n" );
document.write( "for n=31 rows<BR>\n" );
document.write( "we need   31+31*31=992 blocks and we have only 950 so <BR>\n" );
document.write( "30 rows tall is the answer\r<BR>\n" );
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document.write( "        <BR>\n" );
document.write( " </SPAN>\n" );
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