Master Wang processes a batch of parts. If the work efficiency is increased by 25%, it can be completed 24 minutes earlier than the original time. Now Master Wang processes 600 parts according to the original work efficiency, and then increases the efficiency by 20%. The result Master Wang completed the task 10 minutes ahead of schedule. How many parts are there in this batch?
王师傅加工一批零件，如果把工作效率提高25%，则可比原定的时间提前24分钟完成，现在王师傅先按照原定的工作效率加工了600个零件，再将效率提高20%，结果王师傅提前了10分钟完成任务．这批零件有多少个？
<gadget id="calculator">25 / 100</gadget>
<output>1/4 = around 0.25</output>

<gadget id="calculator">1 + (1/4)</gadget>
<output>5/4 = around 1.25</output>

<gadget id="calculator">1 / (5/4)</gadget>
<output>4/5 = around 0.8</output>

<gadget id="calculator">1 - (4/5)</gadget>
<output>1/5 = around 0.2</output>

<gadget id="calculator">24 / (1/5)</gadget>
<output>120</output>

<gadget id="calculator">20 / 100</gadget>
<output>1/5 = around 0.2</output>

<gadget id="calculator">1 + (1/5)</gadget>
<output>6/5 = around 1.2</output>

<gadget id="calculator">1 / (6/5)</gadget>
<output>5/6 = around 0.833333</output>

<gadget id="calculator">1 - (5/6)</gadget>
<output>1/6 = around 0.166667</output>

<gadget id="calculator">10 / (1/6)</gadget>
<output>60</output>

<gadget id="calculator">120 - 60</gadget>
<output>60</output>

<gadget id="calculator">600 / 60</gadget>
<output>10</output>

<gadget id="calculator">120 * 10</gadget>
<output>1_200</output>

<result>1_200</result>