Running at the same rate, 8 identical machines can produce 560 paperclips a minute. At this rate, how many paperclips could 10 machines produce in 6 minutes?  Choose the correct answer
A) 1344 B) 4200 C) 8400 D) 50400 E) 67200
8 machines produce 560 in 1 min   8 machines produce 560* 6 in 6 min   10 machine produce 560*6*(10/8) in 6 minutes     560*6*10/8= 
<gadget id="calculator">  560*6*10/8</gadget>
<output>4_200</output>
4200 answer is 4200.
<result>B</result>
Running at the same rate, 8 identical machines can produce 560 paperclips a minute. At this rate, how many paperclips could 10 machines produce in 6 minutes?