Xiaogang's kitchen needs 48 floor tiles with an area of 20dm**2. If you use 16dm**2 floor tiles, how many pieces do you need?
小刚家的厨房铺地砖需面积是20dm**2的地砖48块．如果改用16dm**2的地砖，需要多少块？
<gadget id="calculator">20 * 48</gadget>
<output>960</output>

<gadget id="calculator">960 / 16</gadget>
<output>60</output>

<result>60</result>