The number of cups of flour that will remain when the baker finishes making the 4 loaves of bread is 2 cups.
Using mathematical operations of multiplication and subtraction, the remainder can be computed.
For instance, given that there are 20 cups of flour for making 4 loaves and each loaf requires 4¹/₂ cups, we can determine the total cups required as 18 (4 x 4¹/₂).
The total cups of flour available for the bakery = 20
The total number of loaves of bread to be made = 4
The number of cups of flour per loaf = 4¹/₂
The total number of cups of flour required = 18 (4 x 4¹/₂)
The remainder = 2 (20 - 18)
Thus, the remainder after using 18 cups will be 2 cups.
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