To pave a room with a length of 5 meters and a width of 4 meters, 40 square bricks are needed. If you want to pave a multifunctional classroom with a length of 16 meters and a width of 15 meters, how many such square bricks should be used?
要铺一个长5米，宽4米的房间需要用40块方砖．如果要铺长16米、宽15米的多功能教室，要用这样的方砖多少块？
<gadget id="calculator">16 * 15 * 40</gadget>
<output>9_600</output>

<gadget id="calculator">5 * 4</gadget>
<output>20</output>

<gadget id="calculator">9_600 / 20</gadget>
<output>480</output>

<result>480</result>