In a traditional pound cake recipe, the total weight of the ingredients is made up of:
- 1 pound of sugar
- 1 pound of butter
- 1 pound of eggs
- 1 pound of flour
This totals to \(1 + 1 + 1 + 1 = 4\) pounds.
To find the percentage of the cake that is flour, we calculate:
\[ \text{Percentage of flour} = \left( \frac{\text{Weight of flour}}{\text{Total weight}} \right) \times 100 \]
Substituting the values:
\[ \text{Percentage of flour} = \left( \frac{1 \text{ pound}}{4 \text{ pounds}} \right) \times 100 = 25% \]
Therefore, the percent of a pound cake that is flour is 25%.