Rationale
The ratio of all-purpose flour to rice flour in the recipe is 1:01.
In this recipe, equal amounts of all-purpose flour and rice flour are used, which is 1/4 cup each. This means, for every one part of all-purpose flour, one part of rice flour is used. Therefore, the ratio of all-purpose flour to rice flour is 1 to 1.
A) 1:04
This choice suggests that for every one part of all-purpose flour, four parts of rice flour are used. However, according to the recipe, equal amounts of both types of flour are used, which contradicts this choice.
B) 1:01
This choice accurately represents the ratio of all-purpose flour to rice flour in the recipe. It correctly states that for every one part of all-purpose flour, one part of rice flour is used, which is consistent with the recipe instructions.
C) 2:08
This answer suggests that for every two parts of all-purpose flour, eight parts of rice flour are used. However, according to the recipe, equal amounts of both types of flour are used, not a 2 to 8 ratio.
D) 1:16
This choice suggests that for every one part of all-purpose flour, sixteen parts of rice flour are used. However, the recipe clearly states that equal amounts of both types of flour are used, which contradicts this choice.
Conclusion
The ratio of ingredients in a recipe is determined by comparing the amount of one ingredient to another. In this case, the pancake recipe uses equal amounts of all-purpose flour and rice flour, establishing a 1:1 ratio. All other choices suggesting different ratios are incorrect, as they do not align with the given information in the recipe. Therefore, the correct ratio of all-purpose flour to rice flour in the recipe is 1:01.