1 3/4 cups of flour were used altogether
Explanation:Quantity used by each friend = 1/4 cups of flour
There are 7 friends
The total number of cups used all together:
[tex]\begin{gathered} =\frac{1}{4}\text{cups of flour }\times\text{ }7\text{ friends} \\ =\text{ 7/4} \end{gathered}[/tex]The total number of cups used all together = 7/4
In mixed fraction = 1 3/4 cups of flour were used altogether