document.write( "Question 940452: airtel wants to make mobile phone numbers consisting of the
\n" ); document.write( "digits 0,1,2,3,4,5,6,7,8 and 9 how many numbers are possible if: i.The first digit is 0 and they are to consist of only eight digits? \n" ); document.write( "
Algebra.Com's Answer #573321 by Edwin McCravy(20056)\"\" \"About 
You can put this solution on YOUR website!
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document.write( "0,1,2,3,4,5,6,7,8 and 9\r\n" );
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document.write( "1 way to pick the 1st digit (as 0).\r\n" );
document.write( "9 ways to pick the 2nd digit.\r\n" );
document.write( "8 ways to pick the 3rd digit.\r\n" );
document.write( "7 ways to pick the 4th digit.\r\n" );
document.write( "6 ways to pick the 5th digit.\r\n" );
document.write( "5 ways to pick the 6th digit.\r\n" );
document.write( "4 ways to pick the 7th digit.\r\n" );
document.write( "3 ways to pick the 8th digit.\r\n" );
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document.write( "1×9×8×7×6×5×4×3 = 9!/2! = 181440\r\n" );
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document.write( "Edwin
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