It takes 636363 minutes for 444 people to paint 999 walls. how many minutes does it take 777 people to paint 444 walls? minutes

Let t=time, p=people, and w=walls.

We know that the time it takes is directly proportional to the length of the wall but inversely proportional to the number of people working. That is 
     

We solve for the constant of proportionality, k.
     

The initial values for k are the same for the final values. That is
     

     

     

It will take 16 minutes.      

    

What is the last question i don’t see it?

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