Which is correct?
How many cups of flour?
Or
How much (flour) do you need?
Both questions are correct, but they are asking for slightly different information.
"How many cups of flour?" is asking for a specific measurement in cups. This question is appropriate when you need to know the precise quantity of flour required for a recipe.
On the other hand, "How much (flour) do you need?" is a broader question, asking for the general amount, without specifying a particular unit of measurement. This question is helpful when you want to know the overall quantity of flour needed, but you are open to using different units or measurements (such as grams, pounds, or kilograms).
So, the choice between these two questions depends on the level of detail you need and whether you want to specify the measurement unit or leave it open-ended.
Both questions are grammatically correct, but they have slightly different meanings.
The question "How many cups of flour?" is asking for a specific quantity of flour measured in cups. This implies that the person asking the question wants to know the precise number of cups required for a specific recipe or task.
On the other hand, the question "How much (flour) do you need?" is asking for a general amount of flour, without specifying the unit of measurement. This question allows for the possibility of using a different measuring unit or a different way of quantifying the flour, such as weight or volume.
To determine which question is more appropriate in a given context, it would be helpful to consider factors such as the recipe or task at hand, any specified measurements in the instructions, and personal preferences or requirements.
To find the answer to either question, you would need to look at the recipe or task instructions that require flour. The specific amount or measurement of flour required should be mentioned there. If you are reading a recipe, it will likely provide measurements in cups, such as "2 cups of flour." If you are following other instructions, it might specify a different unit of measurement or a different way of quantifying the flour, such as "400 grams of flour" or "enough flour to form a thick batter."