Question

It takes 20 minutes for 5people to paint 5 walls. How many minutes does it take 9 people to paint 9walls?

Answer 1

20 minutes.

Explanation:

Since it takes 5 people to paint 5 walls 20 minutes, that means that it would take 1 person 20 minutes to paint 1 wall. That also means that 2 people would take 20 minutes to paint 2 walls. So, it would take 9 people 20 minutes to paint 9 walls.

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