document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=31598>Question 31598</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A box contains 2 fifty paise coins,5 twenty five paise coins and a certain fixed number(N<=2) of ten and five paise<BR>\n" );
document.write( "coins.If five coins are taken out of the box at random,then the probability that the total value of these 5 coins is <BR>\n" );
document.write( "less than one rupee and fifty paise is which of the following:-<BR>\n" );
document.write( "A.10*(N+2)/(N+7C5)<BR>\n" );
document.write( "B.1-(10*(N+2)/(N+7C5))<BR>\n" );
document.write( "C.5(N+3)/(N+5C2)<BR>\n" );
document.write( "D.1-(5*(N+3)/(N+5C2)) </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #20154 by </B><A HREF=/tutors/aboutme.mpl?userid=venugopalramana><B>venugopalramana(3286)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=venugopalramana><IMG SRC=http://www.algebra.com/images/aboutme-small.gif BORDER=0 alt=\"About Me\" VALIGN=MIDDLE></A>&nbsp;<IMG SRC=http://www.geocities.com/venugopalramana/FREE_MATHS_ASSISTANCE.html valign=middle><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=20154\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> A box contains 2 fifty paise coins,5 twenty five paise coins and a certain fixed number(N<=2) of ten and five paise<BR>\n" );
document.write( "coins.If five coins are taken out of the box at random,then the probability that the total value of these 5 coins is<BR>\n" );
document.write( "less than one rupee and fifty paise is which of the following:-<BR>\n" );
document.write( "SINCE IT IS EASIER TO FIND THE NUMBER OF WAYS BY WHICH THE SUM OF 5 COINS CAN EQUAL OR EXCEED RS.1.50,LET US FIND IT OUT AND SUBTRACT THE RESULTANT PROBABILITY FROM ONE TO GET THE ANSWER<BR>\n" );
document.write( "WE HAVE IN ALL 2+5+N=N+7 COINS<BR>\n" );
document.write( "5 CAN BE TAKEN IN ...(N+7)C5 WAYS<BR>\n" );
document.write( "CASE 1.....1*50+4*25=1.50....IN..(2C1)(5C4)=2*5=10<BR>\n" );
document.write( "CASE 2.....2*50+3*25=1.75....IN..(2C2)(5C3)=1*10=10<BR>\n" );
document.write( "CASE 3.....2*50+2*25+1*5 OR 10=1.55 OR 1.60...IN...(2C2)(5C2)(NC1)=1*10*N=10N<BR>\n" );
document.write( "TOTAL NUMBER .....................=10+10+10N=20+10N<BR>\n" );
document.write( "PROBABILITY OF GETTING 1.50 OR MORE =(20+10N)/{(N+7)C5}<BR>\n" );
document.write( "PROBABILITY OF GETTING LESS THAN 1.50 =1- [(20+10N)/{(N+7)C5}] </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );