A weaving factory processes a batch of cloth, A and B cooperate to complete it in 16 days, A alone does it in 20 days, and B weaves 600 meters per day, how many kilometers are the total of this batch of cloth?
织布厂加工完成一批布，甲乙合作16天完成，甲单独做20天完成，乙每天织600米，这批布共多少千米．
<gadget id="calculator">1 / 16</gadget>
<output>1/16 = around 0.0625</output>

<gadget id="calculator">1 / 20</gadget>
<output>1/20 = around 0.05</output>

<gadget id="calculator">(1/16) - (1/20)</gadget>
<output>1/80 = around 0.0125</output>

<gadget id="calculator">600 / (1/80) / 1_000</gadget>
<output>48</output>

<result>48</result>