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Question: What is the probability of choosing a vowel in the word REPETITION?


A ) 12
B ) 25
C ) 15
D ) 35

Steps to derive

1 Number of favorable outcomes = Number of vowels in the word = 5

2 Total number of possible outcomes = Total number of letters in the word = 10

3 P(vowel) = Number of favorable outcomesTotal number of possible outcomes

 [Substitute and simplify.]
4 = 510 = 12

5 Probability of choosing a vowel from the word REPETITION is 12.



Hence the right answer is Option A

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