To process a batch of parts, A alone can complete it in 20 days, and A and B can complete it in 8 days together. It is known that B makes 12 more parts than A every day. Ask how many parts does B process every day?
加工一批零件，甲独做20天完成，甲、乙合做8天完成．已知乙每天比甲多做零件12个．问乙每天加工多少个零件？
<gadget id="calculator">20 * 12</gadget>
<output>240</output>

<gadget id="calculator">8 * 12</gadget>
<output>96</output>

<gadget id="calculator">240 - 96</gadget>
<output>144</output>

<gadget id="calculator">20 - 8 - 8</gadget>
<output>4</output>

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

<result>36</result>