Find the cardinal number of the following sets :
A={x|x is a consonant in the word HUNDRED}

Answer

To find the cardinal number of the set A, which consists of consonants in the word "HUNDRED", we can follow these steps:

### Step-by-Step Solution:

1. **Identify the word**: The word given is "HUNDRED".

2. **List the letters**: Write down all the letters in the word:
- H, U, N, D, R, E, D

3. **Identify vowels**: Recall that the vowels in the English language are A, E, I, O, U. From the letters in "HUNDRED", we identify the vowels:
- The vowels here are U and E.

4. **Identify consonants**: The consonants are the letters that are not vowels. So, we can list the consonants from the word:
- The consonants are H, N, D, R.

5. **Write the set**: Now we can write the set A of consonants:
- A = {H, N, D, R}

6. **Count the elements**: Finally, we count the number of elements in set A:
- There are 4 consonants: H, N, D, R.

7. **State the cardinal number**: The cardinal number of set A is 4.

### Final Answer:
The cardinal number of the set A is 4.

---