An engineering team builds a road, originally planned to build 15 kilometers of roads in 30 days, but actually repairs 100 meters more than the original plan every day. Based on this calculation, how many days will it actually take to complete the task?
一个工程队修路，原计划30天修路15千米，实际每天比原计划多修100米，照这样计算，完成任务实际需要多少天？
<gadget id="calculator">15 * 1_000</gadget>
<output>15_000</output>

<gadget id="calculator">15_000 / 30</gadget>
<output>500</output>

<gadget id="calculator">500 + 100</gadget>
<output>600</output>

<gadget id="calculator">15_000 / 600</gadget>
<output>25</output>

<result>25</result>