Question

На окраску окон ушло 3,2 кг белил,что составляет 5\8 всех белил,истраченных на ремонт. на ремонт было истрачено 4\5 всех купленных белил. Сколько килограмм белил было куплено

Answer 1

Обозначим все белила х (кг ) ;  4/5  x-- белила для ремонта ;
По ус-вию 5/8 от (4/5 x )  на окна . , с другой стороны на окна 3,2 кг

5/8 * 4/5 x = 3,2 =3 цел1/5= 16/5 ;   x  = 16/5 : (5/8 * 4/5) =16/5 : 1/2

Все белила х = 6,4 (кг )

Answer 2

Calculating the Amount of Whitewash Purchased

To calculate the amount of whitewash purchased, we can use the information provided in the question.

Let's denote the total amount of whitewash purchased as W.

According to the given information: - 3.2 kg of whitewash was used for window painting, which represents 5/8 of all the whitewash used for repairs. - 4/5 of all the purchased whitewash was used for repairs.

We can set up the following equation to represent the given information: 3.2 = (5/8) * W * (4/5)

Solving for the Amount of Whitewash Purchased

To find the amount of whitewash purchased, we can solve the equation for W.

First, let's simplify the equation: 3.2 = (5/8) * W * (4/5) 3.2 = (1/2) * W W = 3.2 / (1/2) W = 3.2 * 2 W = 6.4

The amount of whitewash purchased was 6.4 kilograms.