Xiao Ming leaves home at 6:50 every morning and arrives at school at 7:20. The teacher asked him to arrive at school 6 minutes early tomorrow. If Xiao Ming starts from home at 6:50 tomorrow morning, he must walk 25 meters more than usual every minute in order to arrive at school on time according to the teacher's request. Q: How far is Xiao Ming's home from the school?
小明每天早晨6：50从家出发，7：20到校．老师要求他明天提早6分钟到校．如果小明明天早晨还是6：50从家出发，那么，每分钟必须比往常多走25米，才能按老师的要求准时到校．问：小明家距学校多远？
<gadget id="calculator">30 - 6</gadget>
<output>24</output>

<gadget id="calculator">24 / 6</gadget>
<output>4</output>

<gadget id="calculator">25 * 4 * 30</gadget>
<output>3_000</output>

<result>3_000</result>