Question

Write the Cardinal number of set: A= {set of letters in the word "EXAMINATION"
1. 11
2. 8
3. 9
4. 10​

Answer 1

$\huge\underline\mathtt\green{Answer}$

A = {set of letters in the word “EXAMINATION”}

A = {E, X, A, M, I, N, T, O}

Cardinal number n(A) = 8

so option 2) 8 is correct

Answer 2

Given:

The word = Examination

To Find:

Cardinal numbers in the word Examination

Solution:

The cardinal number is the total figure of definite items in a fixed or determinate collection.

It is written as n.(A)

Given, A = {letters in the word EXAMINATION}

Noting the cardinal alphabets,

Thus,

A = ( E, X, A, M , I, N , T and O)

Total unique letters = 8

Therefore, the cardinal number of set X = 8,

i.e., n ( A ) = 8

Answer: Cardinal numbers in the word Examination is 8.