Question

Длина комбаты премоуголной формы 60дм, ширина 30 дм, а высота стен 250см, Обоями ок милиции площадь в 2 раза больше оставшейся .Какую площадь стен осталось отбить?

Answer 1

 Площадь стен  60*25=1500*2=3000дм²  (*2 так как 2 стены одинаковые)
  30*25=750*2=1500дм²
всего 3000+1500=4500дм²
оклеили 2/3 площади
4500*2/3=3000дм²
осталось 4500-3000=1500дм²

Ответ: 1500 дм² осталось.

Answer 2

Calculation of Remaining Wall Area

To calculate the remaining wall area, we can use the given dimensions of the room and the information about the police station's wallpapered area.

The dimensions of the room are: - Length: 60 dm - Width: 30 dm - Height of the walls: 250 cm

The wallpapered area of the police station is twice the remaining area.

Calculation Steps

1. Calculate the total wall area of the room. 2. Calculate the wallpapered area of the police station. 3. Find the remaining wall area by subtracting the wallpapered area from the total wall area.

Total Wall Area Calculation

The total wall area can be calculated using the given dimensions of the room. The formula to calculate the total wall area is: \[ 2 \times (length \times height) + 2 \times (width \times height) \]

Substitute the given values: \[ 2 \times (60 \, dm \times 250 \, cm) + 2 \times (30 \, dm \times 250 \, cm) \]

Let's calculate the total wall area.

Calculation

\[ 2 \times (60 \, dm \times 250 \, cm) + 2 \times (30 \, dm \times 250 \, cm) = 2 \times (15000 \, dm \cdot cm + 7500 \, dm \cdot cm) = 2 \times 22500 \, dm \cdot cm = 45000 \, dm \cdot cm \]

So, the total wall area is 45000 dm².

Wallpapered Area Calculation

The wallpapered area of the police station is twice the remaining area. To find the remaining area, we can divide the total wall area by 3 (2 parts remaining, 1 part wallpapered).

\[ \frac{45000 \, dm²}{3} = 15000 \, dm² \]

So, the wallpapered area of the police station is 15000 dm².

Remaining Wall Area Calculation

To find the remaining wall area, we subtract the wallpapered area from the total wall area.

\[ 45000 \, dm² - 15000 \, dm² = 30000 \, dm² \]

The remaining wall area to be wallpapered is 30000 dm².