To build a road, if it builds 320 meters every day, it can be completed in 15 days. If you want to finish repairing in 12 days, how many meters should be repaired every day?
修一条路，如果每天修320米，15天可以修完．如果要想12天修完，每天应修多少米？
<gadget id="calculator">15 / 12</gadget>
<output>5/4 = around 1.25</output>

<gadget id="calculator">320 * (5/4)</gadget>
<output>400</output>

<result>400</result>