document.write( "Question 67089This question is from textbook Advanced mathematics
\n" ); document.write( ": How many three-digit counting numbers are there that are less than 300 such that all the digits are even? \n" ); document.write( "
Algebra.Com's Answer #47767 by Zoop(21)\"\" \"About 
You can put this solution on YOUR website!
Wierd---I thought I had solved this one already, but for some reason, I can't find it. Anyway, here's how to do it.\r
\n" ); document.write( "\n" ); document.write( "There is only 1 possibility for the first digit of any of the numbers, as no 3-digit number with an even first digit is underneath 300 unless the first digit is 2. Therefore, we take 1 as the first term.\r
\n" ); document.write( "\n" ); document.write( "For the second one, it could be 2,4,6, or 8. So there are 4 choices, as there are for the third term too.\r
\n" ); document.write( "\n" ); document.write( "\"1%2A4%2A4=16\"\r
\n" ); document.write( "\n" ); document.write( "Therefore, we have 16 counting numbers less than 300 that have all even digits.\r
\n" ); document.write( "\n" ); document.write( "If you'd like a list of the numbers:
\n" ); document.write( "222
\n" ); document.write( "224
\n" ); document.write( "226
\n" ); document.write( "228
\n" ); document.write( "242
\n" ); document.write( "244
\n" ); document.write( "246
\n" ); document.write( "248
\n" ); document.write( "262
\n" ); document.write( "264
\n" ); document.write( "266
\n" ); document.write( "268
\n" ); document.write( "282
\n" ); document.write( "284
\n" ); document.write( "286
\n" ); document.write( "288\r
\n" ); document.write( "\n" ); document.write( "Done. =)
\n" ); document.write( "-Zoop
\n" ); document.write( "
\n" );