A letter is chosen at random from the letters of English alphabet. Find the probability that it is a

M4maths Previous Puzzles

25 Mar 2016 Probability

A letter is chosen at random from the letters of English alphabet. Find the probability that it is a letter of the word 'DELHI'.

OPtion

1) 1/3
2) 5/13
3) 1/7
4) 2/13
5) 1/8
6) 5/26
7) 5/23
8) 1/13
9) 2/3
10)None of these

Solution

There are five letter in the word 'DELHI'
Therefore Number of favourable outcomes = 5
Total number of possible outcomes = 26 (Letter in English alphabet)
Therefore
Probability of getting a letter of the word 'DELHI' = 5/26

Option 6)

Correct Option: 6 Best Solution (12)

Manoj Maruti Pawar   8 years AGO

Total no of letters 26
Selection to be done only 5
so
5/26

Like? Yes (3) | No   

Ankush Surana   8 years AGO

Total no of specimen=26
and desired =5
then probablity will be =5/26.

Like? Yes (1) | No   

ABHINAV PUSHPAM   8 years AGO

5/26 will be the answer.

Possible outcomes is 26 and favourable outcomes is 5.
P (e)= 5/26
Option 6)

Like? Yes (2) | No (1)  

dev   8 years AGO

as probability of finding D' =1/26
similarly for all other 4 alphabets the probability also 1/26 for each...

so total probability = 1/26 +1/26 +1/26 +1/26 +1/26 = 5 /26

Like? Yes (2) | No (1)  

chinthakunta mounika   8 years AGO

alphabets contains 26 letters and delhi is 5 letters word.in this any letter is not repeatd,so the answer is option 6

Like? Yes (1) | No   

Lenin   8 years AGO

No. of letters in the word 'DELHI' is 5.
total no. of letters in English alphabet is 26.
so, the probability of taking a letter of the word is = 5/26

Like? Yes (2) | No (2)  

Mridula Shaw   8 years AGO

Total no of sample n(s)=26
No of Event n(A)=5
Thus,
P(A)=5/26

Like? Yes (1) | No (1)  

Vikas William   8 years AGO

total ways-26
total ways to succeed-5
hence 5/26

Like? Yes (1) | No (1)  

SRITAMA CHOWDHURY   8 years AGO

We can choose one letter from the alphabets in C(26,1)=26 ways..and one letter can be chosen from 5 letters in C(5,1) ways.
so the probability is 5/26.

Like? Yes (1) | No (1)  

abhishek singh   8 years AGO

Because the word delhi has 5 letters and english alphabet has 26 letters.

Like? Yes | No (1)  

Mummadi Sai Mahitha   8 years AGO

probability=no. of taken/total no.
so,total alphabets=26
no. of taken=5
so p=5/26

Like? Yes (1) | No (2)  

saitejapinky   8 years AGO

Total no of alphabets are 26
DELHI contains 5 letters
5 are chosen from 26
so the probability is 5/26

Like? Yes (1) | No (3)