The engineering team planned to use 60 people in 5 days to repair a 4,800-meter-long road. In fact, 20 people were added, and each person repaired 4 meters more than planned every day. How many days did it take to actually complete the road?
工程队计划用60人5天修好一条长4800米的公路，实际上增加了20人，每人每天比计划多修了4米，实际修完这条路少用了几天？
<gadget id="calculator">60 + 20</gadget>
<output>80</output>

<gadget id="calculator">4_800 / 5 / 60</gadget>
<output>16</output>

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

<gadget id="calculator">80 * 20</gadget>
<output>1_600</output>

<gadget id="calculator">4_800 / 1_600</gadget>
<output>3</output>

<gadget id="calculator">5 - 3</gadget>
<output>2</output>

<result>2</result>