Xiao Ming leaves home at 6:50 every morning and arrives at school at 7:30. The teacher asked him to arrive at school 5 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，7：30到校．老师要求他明天提早5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">40 - 5</gadget>
<output>35</output>

<gadget id="calculator">35 / 5</gadget>
<output>7</output>

<gadget id="calculator">25 * 7 * 40</gadget>
<output>7_000</output>

<result>7_000</result>