Xiaofang and her mother went out at 6:00 p.m., when she was about to leave, she looked at the clock, and the angle between the clock and the minute was 110°. When she came home before 7:00 p.m., she found that the angle between the two hands was still 110°. how many minutes.
小芳与妈妈下午6点多钟外出，临出门时，她一看钟，时钟与分钟的夹角为110°，下午7点前回家时，发现两指针夹角仍为110°，他们外出多少分钟．
<gadget id="calculator">110 + 110</gadget>
<output>220</output>

<gadget id="calculator">6 - 0.5</gadget>
<output>5.5</output>

<gadget id="calculator">220 / 5.5</gadget>
<output>40</output>

<result>40</result>