4 cows produce 720 kilograms of milk per month, how many kilograms of milk does each cow produce per month on average?
4头奶牛一个月产奶720千克，平均每头奶牛一个月产奶多少千克？
<gadget id="calculator">720 / 4</gadget>
<output>180</output>

<result>180</result>