Question

4 маляра окрашивают 6 комнат за 5 часов. За какое время 12 маляров окрасят 36 комнат?

Answer 1

Ответ: 180 минут=3 часа

Answer 2

Solution:

To solve this problem, we can use the concept of proportionality. If 4 painters can paint 6 rooms in 5 hours, then we can calculate how many painters are needed to paint 36 rooms in the same amount of time.

Let's calculate the time it would take for 12 painters to paint 36 rooms.

Calculation:

Given: - 4 painters paint 6 rooms in 5 hours.

We can use the formula: \[ \text{Number of painters} \times \text{Number of rooms} \times \text{Time} = \text{Constant} \]

Using the given information, we can calculate the time it would take for 12 painters to paint 36 rooms.

\[ 4 \times 6 \times 5 = 12 \times 36 \times \text{Time} \]

Solving for \(\text{Time}\): \[ \text{Time} = \frac{4 \times 6 \times 5}{12 \times 36} \]

\[ \text{Time} = \frac{120}{432} \]

\[ \text{Time} = \frac{5}{18} \]

So, it would take 12 painters \(\frac{5}{18}\) hours to paint 36 rooms.

Answer:

Therefore, 12 painters will paint 36 rooms in \(\frac{5}{18}\) hours.