Uncle Zhang grows cucumbers in a rectangular vegetable field with a length of 4.8 meters and a width of 2.5 meters. This vegetable field produces a total of 240 kilograms of cucumbers this year. How many kilograms of cucumbers can be produced on average per square meter?
张伯伯在一块长4.8米，宽2.5米的长方形菜地里种黄瓜，这块菜地今年共产黄瓜240千克，平均每平方米产黄瓜多少千克？
<gadget id="calculator">4.8 * 2.5</gadget>
<output>12</output>

<gadget id="calculator">240 / 12</gadget>
<output>20</output>

<result>20</result>