The road repair team repaired a road. It was originally planned to repair 160 meters per day, and the repair was completed in 15 days. The actual repair was 40 meters more per day. How many days was it actually completed? (Solve with ratio)
修路队修一条公路，原计划每天修160米，15天修完，实际每天多修40米，实际几天修完？(用比例解)
<gadget id="calculator">160 * 15</gadget>
<output>2_400</output>

<gadget id="calculator">160 + 40</gadget>
<output>200</output>

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

<result>12</result>