If it takes 4 identical printing presses exactly 4 hours to print 6,000 newspapers, how long would it take 2 of these presses to print 5,000 newspapers?
Select the correct option:
A) 6 hrs 50 mins
B) 6 hrs 40 mins
C) 6 hrs 30 mins
D) 6 hrs 20 mins
E) 6 hrs 10 mins
4 presses - 6,000 newspapers - 4 hours ;   2 presses - 3,000 newspapers - 4 hours ; (240 mins)   2 presses - 5,000 newspapers - 240/3000*5000 = 400 mins = 6 hrs 40 mins   Answer : 6 hrs 40 mins
<result>B</result>
If it takes 4 identical printing presses exactly 4 hours to print 6,000 newspapers, how long would it take 2 of these presses to print 5,000 newspapers?