(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

This is a question I once encountered with a window advertisement popup, but I think I can work out the answer but I don't know how to logically explain it to my kids.

10 people can paint 60 houses in 120 days. How many houses can 5 people paint in 60 days

2. Relevant equations

No, that's all

3. The attempt at a solution

What a seem-to-be easy problem is not easy. (for me at least)

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# Homework Help: Should be an easy but conceptual problem

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