The sum of the sides of a cuboid is 120 cm, the length is 15 cm, and the width is 10 cm. What is its height in cm?
一个长方体的棱长总和是120厘米，其中长是15厘米，宽是10厘米，它的高是多少厘米．
<gadget id="calculator">120 / 4</gadget>
<output>30</output>

<gadget id="calculator">30 - 15 - 10</gadget>
<output>5</output>

<result>5</result>