Aunt Liu's plastic greenhouse grew 180 square meters of Chinese cabbage, and sold 40 square meters of Chinese cabbage last week, earning a total of 960 yuan. According to this calculation, how much can these Chinese cabbage be sold in total?
刘阿姨家塑料大棚里种了180平方米大白菜，上星期卖掉40平方米的大白菜，共收入960元．照这样计算，这些大白菜一共可以卖多少元？
<gadget id="calculator">960 / 40</gadget>
<output>24</output>

<gadget id="calculator">24 * 180</gadget>
<output>4_320</output>

<result>4_320</result>