3 cups (420 gr.) + 2 spoons (30 gr.)=450 gr. flour
it is 2 1/4 cups it is 2 1/4 cups
That is 1.543 cups
That is 3.527 cups.
That is approximately 1.653 cups
400 grams of water is 1.76 cups
That is about 7.5 tablespoons
1 cup of flour is equal to 125 grams. However, because grams measure mass and cups measure volume, this measurement will change based on what you are measuring.
It is not a direct conversion, as flour density varies. Just over half a pound would be typical. Cups is a measure of volume. Pounds is a measure of weight and mass. You can not directly convert the two.
About 0.73 cups
1 cup of all-purpose flour is equal to 125 grams. 100 grams of flour will equal 0.8 cups. However, this measurement will change based on what you are using. A cup is a measure of volume, but a gram is measure of mass. Depending on the density, the weight will change.
2 and a half