To build a road, if you build 60 meters a day, you can finish it in 25 days. How many days will it take to repair 15 meters more every day? (Answer with proportional knowledge)
修一条路，如果每天修60米，25天可以修完．如果每天多修15米，多少天可以修完？(用比例知识解答)
<gadget id="calculator">60 * 25</gadget>
<output>1_500</output>

<gadget id="calculator">15 + 60</gadget>
<output>75</output>

<gadget id="calculator">1_500 / 75</gadget>
<output>20</output>

<result>20</result>