Brаd did а study оf whether аny оf the African natiоnal flags contained the colors red or blue. Of the 53 flags he studied, 8 had neither red nor blue, 13 have both red and blue, and 38 had red. HINT: Draw a Venn Diagram to help solve the problem. a. How many flags had contained the color blue? [a] b. How many flags contained the color red, but not blue? [b]