document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=276488>Question 276488</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Given real numbers a and b; let a*b = a+b+ab: Evaluate  3 * (4 * 5):\r<BR>\n" );
document.write( "\n" );
document.write( "a) 60 (b) 80 (c) 119 (d) 133 (e) None of the above </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #201465 by </B><A HREF=/tutors/aboutme.mpl?userid=bamigbe20><B>bamigbe20(3)</B></A><img src=\"/images/stars/iconNewId_16x16.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=bamigbe20><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=201465\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> <BR>\n" );
document.write( "Given real numbers a and b; let a*b = a+b+ab: Evaluate 3 * (4 * 5)\r<BR>\n" );
document.write( "\n" );
document.write( "solution:<BR>\n" );
document.write( "we solve this one at a time. i.e, we first evaluate the one with bracket, which is (4 * 5):<BR>\n" );
document.write( "     then, 4 * 5 = 4+5+4(5)<BR>\n" );
document.write( "               = 9+20<BR>\n" );
document.write( "               = 29\r<BR>\n" );
document.write( "\n" );
document.write( "so, 4 * 5 = 29.\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( "we then evaluate 3 * (4 * 5) , where 4 * 5 = 29.\r<BR>\n" );
document.write( "\n" );
document.write( "                then, 3 * 29 = 3+29+3(29)<BR>\n" );
document.write( "                             = 3+29+87<BR>\n" );
document.write( "                             = 119.\r<BR>\n" );
document.write( "\n" );
document.write( "Therefore 3 * (4 * 5) = 119....................Hence, The correct answer option is \"C\". <BR>\n" );
document.write( "                 </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );