It costs 540 yuan to pave a conference room with square bricks with a side length of 4 decimeters. How many pieces will it cost to use square bricks with a side length of 6 decimeters?
一间会议室用边长4分米的方砖铺地要540块，改用边长6分米的方砖铺地要多少块？
<gadget id="calculator">540 * 4 * 4</gadget>
<output>8_640</output>

<gadget id="calculator">6 * 6</gadget>
<output>36</output>

<gadget id="calculator">8_640 / 36</gadget>
<output>240</output>

<result>240</result>