1 gallon = 128 fluid ounces
1,792 fl oz = (1,792 / 128) = 14 gallons
4 gal = 512 fl oz
(6 oz per 100 gal) times (20) = (120 oz per 100 gal), or (1.2 oz per gal) .
128 oz
1 US gal is 128 fluid ounces, so 2 gal is 256 fl oz.
That is 256 fl oz.
That is 192 fl oz.
That is 192 fl oz.
That is 64 fl oz.
That is 384 fl oz.
2
256
Start by simplifying the problem. 8 oz to 50 gal is the same as 4 oz to 25 gal. Divide 4 by 25 and you get .16 ounces to one gallon.