Running at constant rate, 6 identical machines can produce a total of 270 bottles per minute. At this rate, how many bottles could 10 such machines produce in 4 minutes? Choose the correct option:  A) 648  B) 1800  C) 2700  D) 10800  E) 10900
If 6 machines can produce 270 bottles in one minute, 10 machines can produce 270*10/6 bottles in the same time. In 4 minutes, they would produce   4*270*10/6= 
<gadget id="calculator">  4*270*10/6</gadget>
<output>1_800</output>
1800   ANSWER:1800
<result>B</result>
Running at constant rate, 6 identical machines can produce a total of 270 bottles per minute. At this rate, how many bottles could 10 such machines produce in 4 minutes?