Question

Для ремонта купили 20 кг краски. На окраску окон пошла 1/10 часть всей краски, на окраску комнаты – в 2 раза больше, чем на окна, а на кухню – на 500 г краски меньше, чем на комнату. Сколько краски осталось?

Answer 1

На окна- 2 литра
На комнату - 4 литра
На кухню - 3,5 литра
20-2-4-3,5=10,5 л

Answer 2

На окна 20 / 10 = 2;
на комнату 2 * 2 = 4;
на кухню 4 - 0.5;
осталось 20 - 2 - 4 - 0.5 = 12.5

Answer 3

Calculation of Remaining Paint

To calculate the amount of paint remaining after painting the windows, room, and kitchen, we need to determine the amount of paint used for each area and subtract it from the total amount of paint purchased.

Given information: - Total amount of paint purchased: 20 kg

Let's calculate the amount of paint used for each area:

1. Windows: - 1/10 of the total paint is used for the windows. - Therefore, the amount of paint used for the windows is: (1/10) * 20 kg = 2 kg.

2. Room: - The amount of paint used for the room is 2 times more than the amount used for the windows. - Therefore, the amount of paint used for the room is: 2 * 2 kg = 4 kg.

3. Kitchen: - The amount of paint used for the kitchen is 500 g less than the amount used for the room. - Therefore, the amount of paint used for the kitchen is: 4 kg - 500 g = 3.5 kg.

Now, let's calculate the remaining amount of paint:

- Total amount of paint used: 2 kg (windows) + 4 kg (room) + 3.5 kg (kitchen) = 9.5 kg.

- Remaining amount of paint: Total amount of paint purchased - Total amount of paint used = 20 kg - 9.5 kg = 10.5 kg.

Therefore, there will be 10.5 kg of paint remaining after painting the windows, room, and kitchen.