The engineering team repairs a road, if it repairs 240 meters per day, it can be completed in 15 days. If it takes 12 days to complete, how many meters should be repaired every day? (column proportional solution)
工程队修一条公路，如果每天修240米，15天可以完成．如果要12天完成，每天要修多少米？(列比例解)
<gadget id="calculator">240 * 15</gadget>
<output>3_600</output>

<gadget id="calculator">3_600 / 12</gadget>
<output>300</output>

<result>300</result>