<PRE><B>Question 75074</B>
  1 gal =4 qts
600 gal =4(600)=2400 qts
Machine fills 120 one-qt cartons in 1 minute
Then machine can fill 1200 one-qt cartons in 10 minutes
And the machine can fill 2400 one-qt cartons in 20 minutes---------ans

Another way to look at this problem:

Let x=time it takes to put 600 gal of orange juice into one-qt cartons

Now we know that x min is to 2400 qts as 1 min is to 120 qts: 

We write this ratio as:
x/2400=1/120  multiply both sides by 2400
(x(2400))/2400 =2400/120  simplify
x=20 min

Hope this helps----ptaylor
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