question_answer

A company sends performance letters to its employee at the end of the year with some advice of improvement if required for the employee. In the process the company sends three letters to three of its employee addressed to each of them. The clerk of the company inserted the letters into the envelopes at random so that each envelopes contains one letter without taking care of the address on the envelope. Find the probability that at least one letter reaches the correct address.

A)  

B)  

C)  

D)  

E)  None of these