The fruit shop shipped 6 boxes of apples, weighing 180 kilograms in total, and they were all sold out in 3 days. How many kilograms are sold on average per day?
水果店运来6箱苹果，共重180千克，3天全部卖完．平均每天卖出多少千克？
<gadget id="calculator">180 / 3</gadget>
<output>60</output>

<result>60</result>