A barrel of oil weighs 6.5 kilograms. After half of it is used, the barrel weighs 3.75 kilograms. If the price per kilogram is 10.8 yuan, how much can this barrel of oil be sold for?
一桶油连桶重6.5千克，用去一半后，连桶重3.75千克，如果每千克价格是10.8元，这桶油能卖多少元？
<gadget id="calculator">6.5 - 3.75</gadget>
<output>2.75</output>

<gadget id="calculator">2.75 * 2 * 10.8</gadget>
<output>59.4</output>

<result>59.4</result>