document.write( "Question 1166487: A chair is being re-upholstered. The back is a square, 27\" x 27\". Tacks used are 7/16\" diameter (tack head). Tacks are placed uniformly, 1/4\", around the square. Determine number of tacks used. \n" ); document.write( "
Algebra.Com's Answer #852770 by ikleyn(53426)\"\" \"About 
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\n" ); document.write( "A chair is being re-upholstered. The back is a square, 27\" x 27\". Tacks used are 7/16\" diameter (tack head).
\n" ); document.write( "Tacks are placed uniformly, 1/4\", around the square. Determine number of tacks used.
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\n" ); document.write( "\n" ); document.write( "        I read this problem and also read the solution by @CPhill (= artificial intelligence),
\n" ); document.write( "        and I did not get, why so many words are there.\r
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\n" ); document.write( "\n" ); document.write( "        My reasoning/solution will be much shorter.\r
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document.write( "The diameters of the tacks is  7/16''  - - - hence, the radius is  7/32''.\r\n" );
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document.write( "The distance between the tacks is  1/4''  or  8/32'',  so the tacks heads do not interfere \r\n" );
document.write( "with the placement of tacks.\r\n" );
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document.write( "In each side of 27'' long, there are  \"27%2F%28%281%2F4%29%29\" = 108 gaps between tacks.\r\n" );
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document.write( "So, in each side,  we have 108 tacks, and the total tacks is 4*108 = 432.\r\n" );
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document.write( "ANSWER.  432 tacks.\r\n" );
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\n" ); document.write( "\n" ); document.write( "Solved.\r
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