Two letters from the word KHANTKAR are selected at random. What is the probability that at least one of the selected letters is a consonant?
Choices:
A) 25/28	B) 27/28	C) 30/28	D) 40/28	E) 50/28
There are 6 consonants and 2 vowels in KHANTKAR .   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>B</result>
Two letters from the word KHANTKAR are selected at random. What is the probability that at least one of the selected letters is a consonant?