document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=616992>Question 616992</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Locker comb<BR>\n" );
document.write( "The numbers of the lock is 0 to 39 with 3 combinations.<BR>\n" );
document.write( "??? 1. How many combination are possible on ur locker<BR>\n" );
document.write( "2. what is the probability that choosing a combination at random would work to open ur locker<BR>\n" );
document.write( "3. suppose u remember one of the numb is 14 what is the prob to open the locker<BR>\n" );
document.write( "4 if u remember that the 1st numb is one digit the 2nd numb is in the teens and the last is in the thirties<BR>\n" );
document.write( "5 what is the prob that u can open the locker? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #388076 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=388076\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Locker comb<BR>\n" );
document.write( "The numbers of the lock is 0 to 39 with 3 combinations.<BR>\n" );
document.write( "??? <BR>\n" );
document.write( "1. How many combinations are possible on your locker?::: 40C3 = 9880<BR>\n" );
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document.write( "2. what is the probability that choosing a combination at random would work to open your locker?::: 1/9880<BR>\n" );
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document.write( "3. suppose u remember one of the numb is 14 what is the prob to open the locker<BR>\n" );
document.write( "Ans: <BR>\n" );
document.write( "# of ways to succeed: <BR>\n" );
document.write( "3 ways to place the 14<BR>\n" );
document.write( "39C2 = 741 ways to pick the other 2 numbers<BR>\n" );
document.write( "2 way to place the other 2 numbers<BR>\n" );
document.write( "---Total # of ways to succeed: 3*741*2 = 4446<BR>\n" );
document.write( "Probability of opening if one # is know: 4446/9880 = <BR>\n" );
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document.write( "4 if u remember that the 1st numb is one digit the 2nd numb is in the teens and the last is in the thirties<BR>\n" );
document.write( "# of ways to succeed: 10*10*10 = 1000<BR>\n" );
document.write( "Prob = 1000/9880<BR>\n" );
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document.write( "5 what is the prob that u can open the locker?<BR>\n" );
document.write( "Under wha condition?<BR>\n" );
document.write( "-------------------------------<BR>\n" );
document.write( "Cheers,<BR>\n" );
document.write( "Stan H.<BR>\n" );
document.write( " </SPAN>\n" );
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