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Q.

A letter is chosen at random from the english alphabet. What is the probability that it is a letter of the word 'ramanujan'?    


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a

3 13  

b

6 13  

c

20 26  

d

9 26   

answer is A.

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Detailed Solution

Given, a letter is chosen at random from the english alphabet.
There are 26 alphabets in the English alphabet.
The number of the English alphabet is 26.
The number of letters in the word ramanujan is r, a, m, n, u, j.
Total numbers of letters are 6.
The required probability,
P(A)= 6 26 = 3 13   The probability that it is a letter of the word 'ramanujan' is 3 13   .
Hence, the correct option is 1.
 
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A letter is chosen at random from the english alphabet. What is the probability that it is a letter of the word 'ramanujan'?