Answer: 1 cup of flour will be left.
Step-by-step explanation:
A bakes started with quantity of flour =12 cups
As she had \(9\frac{1}{4}\) cups of flour left after the first bunch of batter
Thus, the quantity she use to make first batter=\(12-9\frac{1}{4}\)
\(12-\frac{37}{4}=\frac{48-37}{4}=\frac{11}{4}\text(cups)\)
Since, she made she had \(6\frac{1}{2}\) cups of flour left after the second bunch of batter
Thus, the quantity she use to make first batter=\(9\frac{1}{4}-6\frac{1}{2}\)
\(\frac{37}{4}-\frac{13}{2}=\frac{37-26}{4}=\frac{11}{4}\text(cups)\)
Thus, she use \(\frac{11}{4}\text(cups)\) for each batter.
Flour used in making 2 more batter=\(2\times\frac{11}{4}\text(cups)\)
\(=\frac{11}{2}\ cups\)
Thus, Cups of flour left=\(6\frac{1}{2}-\frac{11}{2}\)
\(=\frac{13}{2}-\frac{11}{2}=\frac{2}{2}=1\ cup\)
