Compile an application problem, so that the formula for solving this application problem is: 120/(25-15)
编一道应用题，使解这道应用题时列式为：120/(25-15)
<gadget id="calculator">25 - 15</gadget>
<output>10</output>

<gadget id="calculator">120 / 10</gadget>
<output>12</output>

<result>12</result>