document.write( "Question 417976: 1). there are 3 up escalators and one elrvator to take shoppers from first to second floor there are 3 down escalator and the same elevator to take shoppers from second floor to first floor. in how many ways can a shoppers go from first floor to the second floor and back?\r
\n" ); document.write( "\n" ); document.write( "2). how many 11 digits numbers are possible if the first digits are 9 and 6, the fifth one is 7 and the last two are 2 and 3?
\n" ); document.write( " that you for your help
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Algebra.Com's Answer #292618 by sudhanshu_kmr(1152)\"\" \"About 
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\n" ); document.write( "1) no. of ways to go first floor to second = 4\r
\n" ); document.write( "\n" ); document.write( "no. of ways to return from second floor = 4\r
\n" ); document.write( "\n" ); document.write( "total no. of ways = 4*4 = 16 \r
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\n" ); document.write( "\n" ); document.write( "2) here, no. of places that should be filled = 6, all others are fixed.\r
\n" ); document.write( "\n" ); document.write( "no. of ways = 10^6 = 1000000\r
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