In the question there are numerous details given. Based on those details the result to the problem can be easily found. The recipe for 2 dozen cookies require = 7 1/2 cups of flour. = 15/2 cups of flour Then Amount of flour required to make 8 dozen cookies = [15/(2 * 2)] * 8 = (15/4) * 8 = 15 * 2 = 30 So 30 cups of flour are required to make 8 dozen cookies by following the same recipe.