A barrel of oil uses 5.8 kilograms, and the rest is 1.5 times as much. How many kilograms of oil are there in the oil barrel?
一桶油用去5.8千克，剩下的是用去的1.5倍，原来油桶里一共有多少千克的油？
<gadget id="calculator">1.5 * 5.8</gadget>
<output>8.7</output>

<gadget id="calculator">8.7 + 5.8</gadget>
<output>14.5</output>

<result>14.5</result>