Question

Three letters are to be sent to different persons and addresses on the three envelopes are also written. Without looking at the addresses, what is the probability that the letters go into the right envelope?

Answer 1

Answer: 1/6

Step-by-step explanation: (1 2 3) (1 3 2) (2 3 1) (2 1 3) (3 2 1) (3 1 2)

These are the possible outcomes

And only one outcome satisfies correctly what we need that is (1 2 3)

Thus there r 6 outcomes and one succesful outcome wat v need

Therefore p(A) = 1/6