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## Comment on

Choose R Employees## Thank you for the videos! It

## Amazing new tricky problem !!

## I didn't even do any

## Even though you reached the

Even though you reached the correct answer, your rationale would have messed you up if the question had read "....there are 20 ways to choose R employees"

In the original question, the correct answer is D since 6C2 = 15 (i.e., R = 2) and 6C4 = 15 (i.e., R = 4).

However, if we know that 6CR = 20, then we can be certain that R = 3