in a manufacturing plant, it takes 36 machines 4 hours of continuous work to fill 6 standard orders. at this rate, how many hours of continuous work by 72 machines are required to fill 12 standard orders?	Choices:
A) 4	B) 6	C) 8	D) 9	E) 12
<gadget id="calculator">36 * 12</gadget>
<output>432</output>

<gadget id="calculator">432 * 4</gadget>
<output>1_728</output>

<gadget id="calculator">1_728 / 72</gadget>
<output>24</output>

<gadget id="calculator">24 / 6</gadget>
<output>4</output>

<result>A</result>
in a manufacturing plant, it takes 36 machines 4 hours of continuous work to fill 6 standard orders. at this rate, how many hours of continuous work by 72 machines are required to fill 12 standard orders?
divide(divide(multiply(multiply(36, 12), const_4), 72), 6)
the choices give away the answer . . 36 machines take 4 hours to fill 8 standard orders . . in next eq we aredoubling the machines from 36 to 72 , but thework is not doubling ( only 1 1 / 2 times ) , = 4 * 48 / 72 * 12 / 6 = 4 ans a