The engineering team planned to build a 480-meter road in 16 days, but because of the continuous rain, it took a total of 4 more days to complete the repair. On average, how many meters were repaired less than planned every day?
工程队计划16天修一条480米的公路，可是因为连续下雨，一共多用了4天才修完，平均每天比计划少修多少米？
<gadget id="calculator">480 / 16</gadget>
<output>30</output>

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

<gadget id="calculator">480 / 20</gadget>
<output>24</output>

<gadget id="calculator">30 - 24</gadget>
<output>6</output>

<result>6</result>