Answer:
15/32 cup
Explanation:
Apparently, you're to assume that flour used on the countertop does not end up in the muffins. If that is the case, then the amount of flour in the 8 muffins is ...
4 cups - 1/4 cup = 3 3/4 cups
When that is divided evenly among 8 muffins, the amount in each is ...
(1/8)·(3 3/4 cups) = (1/8)·(15/4 cups) = 15/32 cup