document.write( "Question 1188940: A big cube of 10 inch, painted throughout, cut into 103\r
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Algebra.Com's Answer #820139 by ikleyn(52799) $\"\"$ $\"About$

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\n" ); document.write( "A big cube of 10 inch, painted throughout, cut into $\"10%5E3\"$ small cubes each of one inch.
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document.write( "The number of exterior cubes is   -  = 1000 - 512 = 488.\r\n" );
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document.write( "Of them, 8 cubes are exactly three-sides painted (at the corners);\r\n" );
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document.write( "8*12 = 96 cubes are exactly two-sides painted (along the 12 edges, but not the corner cubes);\r\n" );
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document.write( "and the rest cubes,  488 - 8 - 96 = 384 =  = 6*64  are one-side painted.\r\n" );
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document.write( "THEREFORE,\r\n" );
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document.write( "    (a)  P =  = 0.384;\r\n" );
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document.write( "    (b)  P =  = 0.096;\r\n" );
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document.write( "    (c)  P =  = 0.008;\r\n" );
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document.write( "    (d)  P =  = 0.488.\r\n" );
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