The students went to Wangcun for an outing, and they walked 55 meters per minute. After walking for 20 minutes, they were still 150 meters away from the midpoint. How far is the school from Wangcun?
同学们去王村郊游，每分钟走55米，走了20分钟后，距中点还有150米，学校距王村多少米？
<gadget id="calculator">110 + 150</gadget>
<output>260</output>

<gadget id="calculator">260 * 2</gadget>
<output>520</output>

<result>520</result>