It takes 60 identical printing machines 2 hours to print 300 cards. How much more time would it take 50 of these machines to print the same total?
Choose the correct option
A) 20 min	B) 25 min	C) 26 min	D) 36 min	E) 30 min
50% of 60 = 30% or 0.30   2 hr x 60 min = 120 min   120 min x 0.30 = 36 min   It will take 36 min longer to print them with only 50 printers.   Answer is 36 min
<result>D</result>
It takes 60 identical printing machines 2 hours to print 300 cards. How much more time would it take 50 of these machines to print the same total?