When Xiaoming went from home to school for the first time, he walked 120 meters per minute, but arrived 4 minutes early, walked at a speed of 80 meters per minute on the second day, but arrived 4 minutes late, and wanted to arrive at school on time on the third day. How many meters should it go?
小聪明第一次从家到学校时，每分钟行120米，结果早到了4分钟，第二天以每分80米的速度行走，结果晚到了4分钟，第三天想准时到校，每分应该行多少米？
<gadget id="calculator">120 * 4</gadget>
<output>480</output>

<gadget id="calculator">80 * 4</gadget>
<output>320</output>

<gadget id="calculator">480 + 320</gadget>
<output>800</output>

<gadget id="calculator">120 - 80</gadget>
<output>40</output>

<gadget id="calculator">800 / 40</gadget>
<output>20</output>

<gadget id="calculator">20 - 4</gadget>
<output>16</output>

<gadget id="calculator">16 / 20</gadget>
<output>4/5 = around 0.8</output>

<gadget id="calculator">120 * (4/5)</gadget>
<output>96</output>

<result>96</result>