The engineering team wants to build a 720-meter-long canal. It is known that 240 meters have been built, and the rest will take 30 days to complete. How many meters will be repaired on average per day?
工程队要修一条长720米的水渠，已知修了240米，剩下的要30天完成，平均每天要修多少米？
<gadget id="calculator">720 - 240</gadget>
<output>480</output>

<gadget id="calculator">480 / 30</gadget>
<output>16</output>

<result>16</result>