The engineering team has been repairing a 4000-meter-long road for 15 days, 180 meters per day, and the remaining 10 days are completed, how many meters per day on average?
工程队修一条长4000米的公路，已经修了15天，每天修180米，余下的10天修完，平均每天修多少米？
<gadget id="calculator">180 * 15</gadget>
<output>2_700</output>

<gadget id="calculator">4_000 - 2_700</gadget>
<output>1_300</output>

<gadget id="calculator">1_300 / 10</gadget>
<output>130</output>

<result>130</result>