School starts at 8:00, Naughty goes to school at a speed of 80 m/min, and arrives at school at 7:52. If he goes to school at a speed of 50 m/min, he will arrive at school at 8:04. How far is the naughty house from the school?
学校8点开始上课，淘气以80米/分的速度去学校，7：52到校．如果他以50米/分的速度去学校，8：04到校．淘气家离学校有多远？
<gadget id="calculator">80 - 50</gadget>
<output>30</output>

<gadget id="calculator">12 / 30</gadget>
<output>2/5 = around 0.4</output>

<gadget id="calculator">50 * (2/5) * 80</gadget>
<output>1_600</output>

<result>1_600</result>