The duration of a math class is 40 minutes. How many degrees does the hour hand turn on the clock face from the beginning of the class to the end of the get out of class?
一节数学课的时间是40分钟，从上课到下课，时针在钟面上转动了多少度？
<gadget id="calculator">360 / 60</gadget>
<output>6</output>

<gadget id="calculator">5 / 60</gadget>
<output>1/12 = around 0.083333</output>

<gadget id="calculator">(1/12) * 40</gadget>
<output>10/3 = around 3.333333</output>

<gadget id="calculator">6 * (10/3)</gadget>
<output>20</output>

<result>20</result>