Xiao Ming and Xiao Ying go home from school at the same time. Xiao Ming’s house is about 840 meters away from school, and Xiao Ying’s house is about 480 meters away from school. If they both walk at a speed of 60 meters per minute, how many minutes can Xiao Ying get home earlier than Xiao Ming ．
小明和小英同时放学回家，小明家离学校大约有840米，小英家离学校大约有480米，如果他们每分钟步行的速度都按60米计算，小英可以比小明早到家多少分钟．
<gadget id="calculator">840 - 480</gadget>
<output>360</output>

<gadget id="calculator">360 / 60</gadget>
<output>6</output>

<result>6</result>