Arrays are used to represent data sets in rows and columns
The librarian could use 3 and 18 as a factor pair
The number of books is given as:
n = 54
Express 54 as a product of two numbers
54 = (1, 54), (2, 27),(3, 18) and (6, 9).
From the options, we have the following factor pair
3 and 18
Hence, the librarian could use 3 and 18 as a factor pair
Read more about factor pairs at:
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