How many minutes does it take 14 people to paint 14 walls

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SUMMARY

The problem states that 7 people take 28 minutes to paint 7 walls, which implies that 1 person takes 28 minutes to paint 1 wall. Consequently, if 14 people are painting 14 walls simultaneously, they will also take 28 minutes to complete the task. This conclusion is drawn from the understanding that the number of workers and walls increases proportionally, maintaining the same time frame for completion.

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I need help with a question that has been bugging me for a while

Here is the question

It takes 28 minutes for 7 people to paint 7 walls.
How many minutes does it take 14 people to paint 14 walls?
 
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It takes 28 minutes for 7 people to paint 7 walls.

this statement is equivalent to saying it takes 28 minutes for 1 person to paint 1 wall ... so, how long for 14 people to paint 14 walls?
 
Imagine that as two separate work sites. At one 7 people are painting 7 walls. How long does that take them? At the other another 7 people are painting another 7 walls. How long does that take them? And, of course, the two groups of people started at the same time.
 

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