Mark uses 1 pt 9 fl oz and then 2 pt 10 fl oz from a container of film developer that holds 3 qt . How much of the developer remains?
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19 ounces?
Be careful here: the Imperial and U.S. Customary fluid ounces are different. In the Imperial system there are 20 fl oz in a pint, whereas in the U.S. system there are 16 fl oz in a pint. There are two pints in a quart in both systems. Which side of the Atlantic are you from?
1 answer