'In an area of the total people 40% were women and 45% coffee drinkers. One-third of

"In an area of the total people 40% were women and 45% coffee drinkers.
One-third of the makes are coffee drinkers. Suppose the total number of
persons in the area is 100, then the number of female non coffee drinkers is
a.

b.

c.

d. none
of these"

One-third