To cover a floor with square bricks, if you use bricks with an area of 9dm**2, you need 96 bricks. If you use square bricks with an area of 16dm**2 instead, how many bricks are needed? (Solve with ratio)
用方砖铺满一块地面，如果用每块面积是9dm**2的砖、需要96块，如果改用每块面积是16dm**2的方砖，那么需要多少块？(用比例解)
<gadget id="calculator">9 * 96</gadget>
<output>864</output>

<gadget id="calculator">864 / 16</gadget>
<output>54</output>

<result>54</result>