I have two questions which I think are so closely related that they should be grouped together.
Quantity for an abbreviation that stands for a plural
Context: The author is trying to explain what open market operations (OMO). The term "open market operation" is meaningless in the context, it is always a group of operations.
Which of the following sentences is grammatically more correct?
OMO refer to the buying or selling..........
OMO refers to the buying or selling.........
The second one is what I found in print. But I think it should be the first one.
Abbreviations that stand for the singular
Do I need to pluralize an abbreviation if it stands for the singular form?
5 kg. costs about €10.
5 kg. cost about €10.
5 kgs. cost about €10.
P.S.:- Please do let me know if the context is insufficient for the first one. Does the context even matter in such cases?