If the height of a cuboid is increased by 1 cm, it becomes a cube, and the surface area is increased by 24 cm**2, what is the volume of the original cuboid?
一个长方体如果高增加1cm就成一个正方体，而且表面积增加24cm**2，则原来长方体的体积为多少．
<gadget id="calculator">24 / 4</gadget>
<output>6</output>

<gadget id="calculator">6 - 1</gadget>
<output>5</output>

<gadget id="calculator">6 * 6 * 5</gadget>
<output>180</output>

<result>180</result>