If the area of the base of the cylinder is reduced by 4 times and the height is doubled, its volume will be reduced by how many times
圆柱的底面积缩小4倍，高扩大2倍，它的体积就缩小多少倍
<gadget id="calculator">4 / 2</gadget>
<output>2</output>

<result>2</result>