document.write( "Question 1207390: Mr A is cracking a secret three digit code. He knows that first digit is a even number and the last digit must be an odd number. how many different combinations of the three digit code exist? (note: 0 is an even number). \n" ); document.write( "

Algebra.Com's Answer #845247 by Theo(13342) $\"\"$ $\"About$

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first digit must be even = 0,2,4,6,8 = 5 possible.
\n" ); document.write( "second digit can be anything from 0 to 9 = 0,1,2,3,4,5,6,7,8,9 = 10 possible.
\n" ); document.write( "third digit must be odd = 1,3,5,7,9 = 5 possible.
\n" ); document.write( "possible number of combinations are 5 * 10 * 5 = 250.\r
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