It takes 20 days to transport a pile of soil if 30 trucks are transported every day. Now that the task is completed 5 days ahead of schedule, how many cars do you need to transport every day?
运走一堆土，如果每天运30车，需要20天才能运完．现在提前5天完成任务，每天要运多少车？
<gadget id="calculator">20 - 5</gadget>
<output>15</output>

<gadget id="calculator">20 / 15</gadget>
<output>4/3 = around 1.333333</output>

<gadget id="calculator">30 * (4/3)</gadget>
<output>40</output>

<result>40</result>