The fruit shop shipped 648 kilograms of apples, half of them were sold on the first day, the remaining half was sold on the second day, and all were sold out on the third day. How many kilograms were sold on the third day?
水果店运来648千克苹果，第一天卖出了一半，第二天卖出剩下的一半，第三天全部卖完，第三天卖了多少千克？
<gadget id="calculator">648 / 2 / 2</gadget>
<output>162</output>

<result>162</result>