If Xiao Ming walks 50 meters per minute from home to school, he will be 6 minutes late, and if he walks 80 meters per minute, he will be 3 minutes early. How many meters does Xiao Ming have to walk from home to school?
小明从家到学校，如果每分钟走50米，就会迟到6分钟，如果每分钟走80米，就会早到3分钟．小明从家到学校要走多少米．
<gadget id="calculator">300 + 480</gadget>
<output>780</output>

<gadget id="calculator">780 / 30</gadget>
<output>26</output>

<gadget id="calculator">26 + 6</gadget>
<output>32</output>

<gadget id="calculator">50 * 32</gadget>
<output>1_600</output>

<result>1_600</result>