Running at the same 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 choice from the following answers
A) 1378  B) 1800  C) 2738  D) 2778  E) 1928
Explanation:   Let the required number of bottles be x.   More machines, More bottles (Direct Proportion)   More minutes, More bottles (Direct Proportion)   machines &amp; 6:10\\ time(in\; minutes) &amp;1:4 \end{matrix}\right\}::270:x}   6 x 1 x x = 10 x 4 x 270   {10\times 4\times 270}{6}}   =&gt; x= 1800   Answer: 1800
<result>B</result>
Running at the same 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?