Question

One letter at random is picked from the word GOOGLE and independently one letter at random is picked from the word GROUP.
a. What is the probability that both letters are ‘O’?
b. What is the probability that the two letters are the same?

Answer 1

a)  2/6 * 1/5 = 2/30 = 1/15

b) 1/15 + 2/6 * 1/5 = 2/15