An agricultural machinery station has 540 kilograms of diesel oil, and after using it for 6 days, there are still 180 kilograms left. How many kilograms do you use on average per day? How many days can the remaining diesel be used?
某农机站有540千克柴油，用了6天，还剩下180千克．平均每天用多少千克？剩下的柴油还可以用几天？
<gadget id="calculator">540 - 180</gadget>
<output>360</output>

<gadget id="calculator">360 / 6</gadget>
<output>60</output>

<gadget id="calculator">180 / 60</gadget>
<output>3</output>

<result>3</result>