From 4:20 to 4:40, how many degrees did the minute hand turn on the clock face?
从4时20分到4时40分，钟面上分针转动了多少度．
<gadget id="calculator">360 / 60</gadget>
<output>6</output>

<gadget id="calculator">6 * 20</gadget>
<output>120</output>

<result>120</result>