Using 4 small cylinders with the same bottom area and 3cm in height, the surface area of a large cylinder is reduced by 48 square centimeters. What is the volume of a small cylinder in cubic centimeters?
用4个底面积相等，高都是3cm的小圆柱，拼成一个大圆柱表面积减少了48平方厘米．一个小圆柱的体积是多少立方厘米？
<gadget id="calculator">48 / 6</gadget>
<output>8</output>

<gadget id="calculator">8 * 3</gadget>
<output>24</output>

<result>24</result>