The road repair team built a 2,400-meter road. The original plan was to build 160 meters a day, but the actual repair was 200 meters a day. How many days earlier than the original plan will the task be completed?
修路队修一条2400米的公路，原计划每天修160米，实际每天修200米，这将比原计划提前几天完成任务？
<gadget id="calculator">2_400 / 160</gadget>
<output>15</output>

<gadget id="calculator">2_400 / 200</gadget>
<output>12</output>

<gadget id="calculator">15 - 12</gadget>
<output>3</output>

<result>3</result>