A road construction team excavated 150 cubic meters of soil in 5 days, and the existing 750 cubic meters of soil, how many days will it take to dig?
某筑路队5天挖土150方，现有750方土，需多少天挖？
<gadget id="calculator">150 / 5</gadget>
<output>30</output>

<gadget id="calculator">750 / 30</gadget>
<output>25</output>

<result>25</result>