barrel of honey, the barrel and the honey weigh 30 kilograms; after pouring out half of the honey, even the barrel weighs 16 kilograms. How many kilograms of honey was there in the bucket?
一桶蜂蜜，桶和蜜共重30千克；倒出一半的蜜后，连桶称还有16千克．桶里原来有蜜多少千克？
<gadget id="calculator">30 - 16</gadget>
<output>14</output>

<gadget id="calculator">14 * 2</gadget>
<output>28</output>

<result>28</result>