The total length from the school to the movie theater is about 900 meters. Xiaoqiao takes 30 minutes to complete the journey, and Xiaopang takes 25 minutes to complete the journey. How many meters does Xiaopang walk more per minute than Xiaoqiao on average?
学校到电影院全长约900米，小巧用30分钟走完，小胖用25分钟走完，小胖平均每分钟比小巧多走多少米？
<gadget id="calculator">900 / 25</gadget>
<output>36</output>

<gadget id="calculator">900 / 30</gadget>
<output>30</output>

<gadget id="calculator">36 - 30</gadget>
<output>6</output>

<result>6</result>