The engineering team repairs a road, if it repairs 15 meters a day, it can be completed in 12 days; if it repairs 18 meters a day, how many days can it be completed? (solution with equation)
工程队修一条路，如果每天修15米，12天可以修完；如果每天修18米，多少天可以修完？(用方程解答)
<gadget id="calculator">15 * 12</gadget>
<output>180</output>

<gadget id="calculator">180 / 18</gadget>
<output>10</output>

<result>10</result>