To produce a batch of straw hats, complete (1/3) of the total number on the first day. If another 250 pieces are processed, 25% of this batch of tasks remains. How many straw hats are there in total?
生产一批草帽，第一天完成总数的(1/3)，如果再加工250顶，则还剩这批任务的25%，这批草帽一共有多少顶？
<gadget id="calculator">1 / 3</gadget>
<output>1/3 = around 0.333333</output>

<gadget id="calculator">25 / 100</gadget>
<output>1/4 = around 0.25</output>

<gadget id="calculator">1 - (1/3) - (1/4)</gadget>
<output>5/12 = around 0.416667</output>

<gadget id="calculator">250 / (5/12)</gadget>
<output>600</output>

<result>600</result>