Processing a batch of parts can be completed in 24 days by the cooperation of Party A and Party B. Now A will do it in 16 days first, and then Party B will do it in another 12 days. (2/5) of this batch of parts are still unfinished. It is known that A processes 3 more parts than B every day, find the number of these parts.
加工一批零件，甲乙合作24天可以完成，现在由甲先做16天，然后由乙方再做12天，还剩下这批零件的(2/5)没有完成．已知甲每天比乙多加工3个零件，求这批零件的个数．
<gadget id="calculator">2 / 5</gadget>
<output>2/5 = around 0.4</output>

<gadget id="calculator">1 / 24</gadget>
<output>1/24 = around 0.041667</output>

<gadget id="calculator">(1/24) * 12</gadget>
<output>1/2 = around 0.5</output>

<gadget id="calculator">1 - (2/5) - (1/2)</gadget>
<output>1/10 = around 0.1</output>

<gadget id="calculator">16 - 12</gadget>
<output>4</output>

<gadget id="calculator">(1/10) / 4</gadget>
<output>1/40 = around 0.025</output>

<gadget id="calculator">(1/24) - (1/40)</gadget>
<output>1/60 = around 0.016667</output>

<gadget id="calculator">(1/40) - (1/60)</gadget>
<output>1/120 = around 0.008333</output>

<gadget id="calculator">3 / (1/120)</gadget>
<output>360</output>

<result>360</result>