To build a road, the original plan was to build 80 meters per day, and it was completed in 60 days. In fact, it only took 40 days to complete the repair. How many meters are actually repaired per day? (answer with ratio)
修一条公路，原计划每天修80米，60天正好修完．实际只用了40天就修完了，实际每天修多少米？(用比例解答)
<gadget id="calculator">80 * 60</gadget>
<output>4_800</output>

<gadget id="calculator">4_800 / 40</gadget>
<output>120</output>

<result>120</result>