Xiaohong's home is 960 meters away from school. One day she set off from home to school, and she walked a total of 720 meters in the first 12 minutes. At this speed, how many minutes will she have to walk to get to school?
小红家离学校有960米，一天她从家出发去学校，前12分钟一共走了720米，照这样的速度，她还要走多少分钟才能到学校？
<gadget id="calculator">960 - 720</gadget>
<output>240</output>

<gadget id="calculator">720 / 12</gadget>
<output>60</output>

<gadget id="calculator">240 / 60</gadget>
<output>4</output>

<result>4</result>