Answer: 1 cup of flour will be left.
Explanation:
A bakes started with quantity of flour =12 cups
 As she had 
 cups of flour left after the first bunch of batter
 cups of flour left after the first bunch of batter 
Thus, the quantity she use to make first batter=


Since, she made she had 
 cups of flour left after the second bunch of batter
 cups of flour left after the second bunch of batter 
Thus, the quantity she use to make first batter=


Thus, she use 
 for each batter.
 for each batter.
Flour used in making 2 more batter=
 
 

Thus, Cups of flour left=

