Xiao Ling walks 100 meters per minute, and Xiao Ming walks 80 meters per minute. The two walk towards each other from the school and the Children's Palace at the same time. When Xiaoling walks to the midpoint, Xiao Ming is still 120 meters away from the midpoint. How many meters is the distance from the school to the Children's Palace? ?
小玲每分钟行100米，小明每分钟行80米，两人同时从学校和少年宫相向而行，当小玲行到中点时，小明距中点还有120米，学校到少年宫有多少米？
<gadget id="calculator">100 - 80</gadget>
<output>20</output>

<gadget id="calculator">120 / 20</gadget>
<output>6</output>

<gadget id="calculator">6 * 100 * 2</gadget>
<output>1_200</output>

<result>1_200</result>