Duke Maverick worked for a packaging company. One Day, Duke received four separate orders and acidentally mixed up the addresses, so he applied the address labels at random, what is the probability that exactly three packages were correctly labeled?

Question

If three were labeled correctly, so was the fourth, since the remaining one would have to match.
The chances of getting the first label correct are 1/4. For the next, it is 1/3 and the third, it is 1/2. The overall probability is the product,
P = (1/4)*(1/3)*(1/2) = 1/24

Answer 1

I would not have concluded that. But it makes sense. Brilliant.