The volume of a bucket is 24 cubic decimeters, the bottom area is 7.5 square decimeters, and there is a hole 0.7 decimeters away from the mouth of the bucket. Now this bucket can hold up to how many kilograms of water. (The mass of water per cubic decimeter is 1 kg)
一个水桶的容积是24立方分米，底面积是7.5平方分米，距桶口0.7分米处出现了漏洞，现在这个水桶最多能装水多少千克．(每立方分米水的质量为1千克)
<gadget id="calculator">7.5 * 0.7</gadget>
<output>5.25</output>

<gadget id="calculator">24 - 5.25</gadget>
<output>18.75</output>

<gadget id="calculator">1 * 18.75</gadget>
<output>18.75</output>

<result>18.75</result>