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

56 minutes

Step-by-step explanation:

14 people painting 14 walls is simply double (x2) 7 people painting seven walls.

We know this because 7 x 2 = 14

So, we will have to double the amount of time it takes them to paint.

28 x 2 = 56

It will take 56 minutes for 14 people to paint 7 walls!