A cuboid, the upper and lower bases are square, if the height of the cuboid is shortened by 3 cm, its surface area will be reduced by 60 cm2, and its volume will be reduced by how many cubic centimeters.
一个长方体，上下两个底面是正方形，把这个长方体的高截短3厘米，它的表面积减少了60平方厘米，它的体积减少了多少立方厘米．
<gadget id="calculator">60 / 4 / 3</gadget>
<output>5</output>

<gadget id="calculator">5 * 5 * 3</gadget>
<output>75</output>

<result>75</result>