A worker wants to produce a batch of machine parts. On the first day, he produced 36 pieces, accounting for (1/4) of this batch of parts. The ratio of the number of parts produced on the second day to the total number is 2:5. How many parts are there in this batch?
某工人要生产一批机器零件，第一天生产了36个，正好占这批零件的(1/4)，第二天生产的和总数的比是2：5．这批零件共有多少个？
<gadget id="calculator">1 / 4</gadget>
<output>1/4 = around 0.25</output>

<gadget id="calculator">36 / (1/4)</gadget>
<output>144</output>

<result>144</result>