Question

После добавления в тесто массой 1200 грамм дополнительно 300 граммов молока процент содержания в нем пшеничной муки составил 40%. Сколько процентов муки было в тесте первоначально?

Answer 1

300+1200=40%
1200 - x%
1500 = 40%
1200 = x%
x = 1200*40/1500=32
x = 32%

Answer 2

Calculation of the Initial Percentage of Flour in the Dough

To calculate the initial percentage of flour in the dough, we need to consider the additional 300 grams of milk that were added to the dough after it already weighed 1200 grams. We also know that the percentage of flour in the milk was 40%.

Let's calculate the initial percentage of flour in the dough step by step:

1. Calculate the weight of the flour in the milk: - The weight of the milk added to the dough is 300 grams. - The percentage of flour in the milk is 40%. - Therefore, the weight of the flour in the milk is 300 grams * (40/100) = 120 grams. 2. Calculate the weight of the flour in the dough before adding the milk: - The total weight of the dough after adding the milk is 1200 grams + 300 grams = 1500 grams. - The weight of the flour in the dough before adding the milk is 1500 grams - 120 grams = 1380 grams.

3. Calculate the percentage of flour in the dough before adding the milk: - The percentage of flour in the dough before adding the milk is (weight of flour in the dough before adding the milk / weight of the dough before adding the milk) * 100. - Therefore, the percentage of flour in the dough before adding the milk is (1380 grams / 1500 grams) * 100 ≈ 92%.

So, the percentage of flour in the dough initially was approximately 92%.