document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1167614>Question 1167614</A>: <I><SPAN STYLE=\"word-break: break-all;\"> The floor of a hall is covered by 480 pieces of square tiles of a certain size. If 3 inches were added to the length of a side of each tile, the floor could be covered by 270 tiles. Find the length of a side of the tile on the floor. </SPAN>\n" );
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document.write( "The ratio of the numbers of square tiles of the two sizes required to cover the floor is 480:270 = 16:9.<br><BR>\n" );
document.write( "That means the ratio of the areas of the two sizes of square tiles is 9:16; and that means the ratio of the side lengths of the two sizes of tiles is 3:4.<br><BR>\n" );
document.write( "So let the two side lengths be 3x and 4x.  Then knowing that the side length of the larger tile is 3 inches more than the side length of the smaller,<br><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=4x-3x=3 ALIGN=MIDDLE  ALT=\"4x-3x=3\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x=3 ALIGN=MIDDLE  ALT=\"x=3\"   DISABLED_style= \"max-width:90%; height:auto;\" ><br><BR>\n" );
document.write( "ANSWER: The side length of the tiles on the floor is 3x=9 inches.<br><BR>\n" );
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