document.write( "Question 892900: how many numbers are there between 400 and 600 which begins or end with 5.
\n" ); document.write( "the answer is 110
\n" ); document.write( "please explain how such questions are solved . \n" ); document.write( "
Algebra.Com's Answer #540872 by Theo(13342)\"\" \"About 
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everything in the 500 range begins with 5, so that's 100 right there.
\n" ); document.write( "the numbers are 500 to 599..
\n" ); document.write( "in the 400 range, which begins at 401, there are 10 numbers that end with 5 and no numbers that begin with 5.
\n" ); document.write( "those numbers are:
\n" ); document.write( "405
\n" ); document.write( "415
\n" ); document.write( "425
\n" ); document.write( "435
\n" ); document.write( "445
\n" ); document.write( "455
\n" ); document.write( "465
\n" ); document.write( "475
\n" ); document.write( "485
\n" ); document.write( "495
\n" ); document.write( "the 600 range doesn't count because you stop at 599.
\n" ); document.write( "the assumption is that the numbers 400 and 600 are not in the range because you are talking about between them which does not include them.
\n" ); document.write( "this doesn't matter in the answer since neither of those two numbers met the criteria of begining with 5 or ending with 5.
\n" ); document.write( " \n" ); document.write( "
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