Q.

A single letter is selected at random from the word PROBABILITY , then the probability that it is a vowel is

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a

311

b

411

c

211

d

111

answer is B.

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Detailed Solution

n(S) = 11C1 =11 Vowels = {O,A,I,I} n(E) = 4C1 =4 P(E) = 411
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A single letter is selected at random from the word PROBABILITY , then the probability that it is a vowel is