Running at the same constant rate, 6 identical machines can produce a total of 330 bottles per minute. At this rate, how many bottles could 10 such machines produce in 4 minutes? Choose the correct choice from the following options
A) 648  B) 1800  C) 2200  D) 10800  E) 10900
Let the required number of bottles be x.   More machines, More bottles (Direct Proportion)   More minutes, More bottles (Direct Proportion)   Machines	6	:	10	:: 330 : x   Time (in minutes)	1	:	4   6 x 1 x x = 10 x 4 x 330   x =	(10 x 4 x 330)/(6)   x = 2200.   ANSWER:2200
<result>C</result>
Running at the same constant rate, 6 identical machines can produce a total of 330 bottles per minute. At this rate, how many bottles could 10 such machines produce in 4 minutes?