A cuboid becomes a cube if its height increases by 3 cm, and its surface area increases by 48 cm2. What is the volume of the original cuboid in cubic centimeters?
一个长方体，如果高增加3厘米，它就变成一个正方体，此时表面积就增加48平方厘米．原来长方体的体积是多少立方厘米？
<gadget id="calculator">48 / 4</gadget>
<output>12</output>

<gadget id="calculator">12 / 3</gadget>
<output>4</output>

<gadget id="calculator">4 * 4 * 1</gadget>
<output>16</output>

<result>16</result>