Two letters from the word BARKHINT are selected at random. What is the probability that at least one of the selected letters is a consonant?  Choose the correct choice:
A) 30/28	B) 40/28	C) 25/28	D) 27/28	E) 32/28
There are 6 consonants and 2 vowels in BARKHINT .   probability that at least one of the selected letters is a consonant = 1 - (Probability of both vowels)   Probability of both vowels = 2C2/8C2 = 1/28   So,Answer is 1 - 1/28 = 27/28   Answer : 27/28
<result>D</result>
Two letters from the word BARKHINT are selected at random. What is the probability that at least one of the selected letters is a consonant?