A barrel of oil with the barrel weighs 200 kilograms. After half of the oil is poured out, the barrel weighs 110 kilograms. How many kilograms does the original oil weigh?
一桶油连油带桶共重200千克，倒出一半油以后，连桶重110千克，原来油重多少千克？
<gadget id="calculator">200 - 110</gadget>
<output>90</output>

<gadget id="calculator">90 * 2</gadget>
<output>180</output>

<result>180</result>