(a(i))[1]
Find the probability that he selects the letter Y first.
(a(ii))[2]
Find the probability that he selects B and then Y.
(a(iii))[3]
Find the probability that he selects two letters that match.
(b(i))[2]
Find the probability that all three letters match.
(b(ii))[5]
Find the probability that exactly two of the three letters match.
(b(iii))[2]
Find the probability that all three letters are different.