The two families of Xiao Ming and Xiao Gang are 1240m apart, and they make an appointment to meet up between the two families. They set off from home at the same time and met after 8 minutes. Xiao Ming walks 75 meters per minute, how many meters does Xiao Gang walk per minute?
小明和小刚两家相距1240m，两人相约在两家之间会合．他们同时从家出发，经过8分钟相遇．小明每分钟行75m，小刚每分钟行多少m？
<gadget id="calculator">75 * 8</gadget>
<output>600</output>

<gadget id="calculator">1_240 - 600</gadget>
<output>640</output>

<gadget id="calculator">640 / 8</gadget>
<output>80</output>

<result>80</result>