A cuboid becomes a cube if its height is reduced by 4 cm, and its volume is reduced by 48 cm3. What is the surface area of the cube?
一个长方体，如果将它的高减少4厘米，就成为一个正方体，而且体积减少48立方厘米，这个正方体的表面积是多少平方厘米．
<gadget id="calculator">48 / 4</gadget>
<output>12</output>

<gadget id="calculator">12 * 6</gadget>
<output>72</output>

<result>72</result>