Ok, here is another great riddle from Maria Konnikova.

And don’t miss my favorite riddle.

Can you get it without looking at the answer?

**Question**

If it takes 5 machines 5 minutes to make 5 widgets, how long would it take 100 machines to make 100 widgets?

**Answer**

If 5 machines take 5 minutes to make 5 widgets, then the output of 1 machine is 5 minutes to make 1 widget.

So let’s restate the question for clarity:

If it takes 1 machines 5 minutes to make 1 widgets, how long would it take 100 machines to make 100 widgets?

**The answer is 5 minutes.**

1 machine makes 1 widget every 5 minutes.

2 machine makes 2 widgets every 5 minutes.

3 machine makes 3 widgets every 5 minutes.

Etc.

I discovered this question in *Mastermind*, By: Maria Konnikova.