How many minutes does it take for the minute hand to go from "3" to "9"
分针从"3"走到"9"经过的时间是多少分
<gadget id="calculator">9 - 3</gadget>
<output>6</output>

<gadget id="calculator">5 * 6</gadget>
<output>30</output>

<result>30</result>