The two brothers and sisters left home to go to school at the same time. The elder brother walked 80 meters per minute, and the younger sister walked 60 meters per minute. When the elder brother arrived at the school gate, he found that he had forgotten his textbooks, so he immediately went home to pick them up along the same road, and met his younger sister 180 meters away from the school. How far is their home from the school?
兄妹二人同时离家上学，哥哥每分钟走80米，妹妹每分钟60米．哥哥到校门口时，发现忘带课本，立即沿原路回家去取，行至离学校180米处与妹妹相遇，他们家离学校有多少米？
<gadget id="calculator">80 - 60</gadget>
<output>20</output>

<gadget id="calculator">2 / 20</gadget>
<output>1/10 = around 0.1</output>

<gadget id="calculator">180 * (1/10)</gadget>
<output>18</output>

<gadget id="calculator">60 * 18</gadget>
<output>1_080</output>

<gadget id="calculator">1_080 + 180</gadget>
<output>1_260</output>

<result>1_260</result>