document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=983812>Question 983812</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Pls help me work out this problem<BR>\n" );
document.write( "Using the digits 1,2,3 and 5, how many 4 digit numbers can be formed if<BR>\n" );
document.write( "a) the first digit must be 1 and repetition of the digits is allowed?<BR>\n" );
document.write( "b) the first digit must be 1 and repetition of the digits is not allowed?<BR>\n" );
document.write( "c) the number must be divisible by 2 and repetion is allowed?<BR>\n" );
document.write( "d) the number must be divisible by 2 and repetition is not allowed?  </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #604754 by </B><A HREF=/tutors/aboutme.mpl?userid=macston><B>macston(5194)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=macston><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=macston><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=604754\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> a) the first digit must be 1 and repetition of the digits is allowed?<BR>\n" );
document.write( "There is 1 possible first digit, 4 second, 4 third and 4 fourth<BR>\n" );
document.write( "1 x 4 x 4 x 4=64 <BR>\n" );
document.write( "ANSWER: 64 possible four digit numbers with 1 as first digit. <BR>\n" );
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document.write( "b) the first digit must be 1 and repetition of the digits is not allowed?<BR>\n" );
document.write( "One possible first digit, 3 second, 2 third , 1 fourth<BR>\n" );
document.write( "1 x 3 x 2 x 1=6<BR>\n" );
document.write( "ANSWER: There are 6 possible numbers.<BR>\n" );
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document.write( "c) the number must be divisible by 2 and repetition is allowed?<BR>\n" );
document.write( "4 possible first digits, 4 possible second, 4 third, 1 fourth<BR>\n" );
document.write( "4 x 4 x 4 x 1=64<BR>\n" );
document.write( "ANSWER 64 possible numbers <BR>\n" );
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document.write( "d) the number must be divisible by 2 and repetition is not allowed? <BR>\n" );
document.write( "3 possible first digits, 2 second, 1 third, 1 fourth<BR>\n" );
document.write( "3 x 2 x 1 x 1=6<BR>\n" );
document.write( "ANSWER: 6 possible numbers  </SPAN>\n" );
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