The distance between Xiaoming's home and school is 1240 meters. Xiaoming walks from school to home at 75 meters per minute, and mother walks from home to school at 80 meters per minute. How long will it take for them to meet each other?
小明家和学校相距1240米．小明从学校往家走，每分走75米，妈妈从家往学校走，每分走80米，多长时间他们能相遇？
<gadget id="calculator">75 + 80</gadget>
<output>155</output>

<gadget id="calculator">1_240 / 155</gadget>
<output>8</output>

<result>8</result>