document.write( "Question 281467: If there are four roads from Ashville to Birchtown and three roads from Birchtown to Cedarburg, how many routes are there from Ashville to Cedarburg which go through Birchtown? \n" ); document.write( "
Algebra.Com's Answer #204479 by brucewill(101)\"\" \"About 
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The answer is 12. Here's how I look at it:\r
\n" ); document.write( "\n" ); document.write( "Consider each of the paths from A to B, numbered 1, 2, 3 and 4.
\n" ); document.write( "Consider each of the paths from B to C, numbered 5, 6 and 7.\r
\n" ); document.write( "\n" ); document.write( "Using 1, you may then use 5, 6 or 7. 3 ways.
\n" ); document.write( "Using 2, you may then use 5, 6 or 7. 3 ways.\r
\n" ); document.write( "\n" ); document.write( "Do you see the pattern?\r
\n" ); document.write( "\n" ); document.write( "Simply 4 * 3 = 12.
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