To build a road, if it takes 80 meters per day to complete the construction in 15 days, if it takes 10 days to complete the construction, how many meters should be repaired per day? (Solve with ratio)
修一条路，如果每天修80米，15天修完，若要10天修完，每天应修多少米？(用比例解)
<gadget id="calculator">80 * 15</gadget>
<output>1_200</output>

<gadget id="calculator">1_200 / 10</gadget>
<output>120</output>

<result>120</result>