A basket of apples weighs 56 kilograms. After half of the apples are sold, the basket weighs 30 kilograms. How many kilograms does the basket of apples weigh?
一筐苹果连筐共重56千克，卖掉苹果的一半后，连筐共重30千克，这筐苹果重多少千克？
<gadget id="calculator">56 - 30</gadget>
<output>26</output>

<gadget id="calculator">26 * 2</gadget>
<output>52</output>

<result>52</result>