document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=863863>Question 863863</A>: <I><SPAN STYLE=\"word-break: break-all;\"> If you pile oranges in a pyramid that has 1 orange in the top layer, 4 in the next layer nine in the third layer, and 16 in the fourth layer, how many oranges will you need to make a pile with 10th layer? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #520663 by </B><A HREF=/tutors/aboutme.mpl?userid=stanbon><B>stanbon(75887)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=stanbon><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=520663\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\">  If you pile oranges in a pyramid that has 1 orange in the top layer, 4 in the next layer nine in the third layer, and 16 in the fourth layer, how many oranges will you need to make a pile with 10th layer?<BR>\n" );
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document.write( "Sum = 1 + 4 + 9 + 16 + ... + 100<BR>\n" );
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document.write( "Sum = (n(n+1)(2n+1)/6<BR>\n" );
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document.write( "Ans = [10*11*21)/6 = 770<BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H.<BR>\n" );
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