An average of 3 workers in a printing factory order 60 books in 5 minutes. How many workers are needed to bind 1200 books in one hour?
某印刷厂平均3名工人5分钟订60册书．要在1小时内装订1200册书，需要工人多少名．
<gadget id="calculator">1 / 12</gadget>
<output>1/12 = around 0.083333</output>

<gadget id="calculator">60 / 3 / (1/12)</gadget>
<output>240</output>

<gadget id="calculator">1_200 / 240 / 1</gadget>
<output>5</output>

<result>5</result>