A cylindrical bucket is filled with water. After pouring out (2/3) of the water, there is still 8 cubic decimeters left. The height of the bucket is 5 decimeters. Find the area of the bottom of the bucket. (The thickness of the bucket is not counted)
一个圆柱形水桶盛满水，倒出水的(2/3)后，还剩下8立方分米，已知桶高5分米，求桶的底面积．(水桶厚度不计)
<gadget id="calculator">2 / 3</gadget>
<output>2/3 = around 0.666667</output>

<gadget id="calculator">1 - (2/3)</gadget>
<output>1/3 = around 0.333333</output>

<gadget id="calculator">8 / (1/3) / 5</gadget>
<output>24/5 = around 4.8</output>

<result>24/5 = around 4.8</result>