Xiao Wang and Xiao Li went from their respective homes to each other's house, and they met on the way in 12 minutes. After meeting, continue to move forward for 7 minutes. At this time, Xiao Wang is still 300 meters away from Xiao Li's house, and Xiao Li is still 250 meters away from Xiao Wang's house. How many kilometers are there between them?
小王和小李分别从各自家去对方家，两人12分钟在途中相遇．相遇后继续前行7分钟，这时小王距小李家还有300米，小李距小王家还有250米．他们两家相距多少千米？
<gadget id="calculator">300 + 250</gadget>
<output>550</output>

<gadget id="calculator">12 - 7</gadget>
<output>5</output>

<gadget id="calculator">550 / 5</gadget>
<output>110</output>

<gadget id="calculator">110 * 12</gadget>
<output>1_320</output>

<result>1_320</result>