Question

E N 3 G # B S 5 A L 9 $ # 7 % U 4 Q K I P 2 @ 8 Y 

How many such consonants are there in the above sequence each of which is immediately followed by a number and immediately preceded by a vowel? 
 

• A. 1
• B. 2
• C. 3
• D. 4
• E. 5

Hint:

To avoid missing elements, underline all the vowels first. Then check if the character to the right is a consonant, and if the one after that is a number.

Answer 1

The Correct Option is B

Step 1: Understanding the Question:
We need to scan the given alphanumeric sequence and find the number of occurrences of a specific pattern: a consonant that has a vowel just before it and a number just after it.
Step 2: Key Formula or Approach:
The pattern we are looking for is: (Vowel) - (Consonant) - (Number).
Vowels are A, E, I, O, U.
Consonants are all other letters.
Numbers are digits 0-9.
Step 3: Detailed Explanation:
Let's scan the sequence and look for this three-element pattern.
Sequence: E N 3 G \# B S 5 A L 9 \$ \# 7 % U 4 Q K I P 2 @ 8 Y
1. Starting from the beginning: `E N 3`
- `E` is a Vowel.
- `N` is a Consonant.
- `3` is a Number.
This matches our pattern (Vowel-Consonant-Number). So, this is our first count.
2. Continue scanning. The next vowel is `A`. Let's check the elements around it: `...5 A L 9...`
- `A` is a Vowel.
- `L` is a Consonant.
- `9` is a Number.
This also matches our pattern. So, this is our second count.
3. Continue scanning. The next vowel is `U`. Let's check the elements around it: `...% U 4 Q...`
- `U` is a Vowel.
- `4` is a Number (not a consonant).
This does not match our pattern.
4. Continue scanning. The next vowel is `I`. Let's check the elements around it: `...K I P 2...`
- `I` is a Vowel.
- `P` is a Consonant.
- `2` is a Number.
This also matches our pattern. So, this is our third count.
The occurrences found are:
- E N 3
- A L 9
- I P 2
Total count of such consonants is 3.
Step 4: Final Answer:
There are 3 such consonants in the sequence.