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Question

Refer to the following letter series and answer the question that follows. Counting to be done from left to right only.
(Left) N G T X R K H V A W Z W U B R E C F K L Z (Right)
How many such vowels are there, each of which is immediately preceded by a consonant and also immediately followed by a consonant?

This question was previously asked in
RRB ALP 2025 CBT 2 Wiremen Question Paper (28-Jul-2026) (Shift 2)
The correct answer is
Three

To solve the given problem, we need to find the number of vowels in the series that are immediately preceded and followed by consonants. Let's break it down step by step:

Series given: N G T X R K H V A W Z W U B R E C F K L Z

First, we identify the vowels in the series. The vowels in the English alphabet are A, E, I, O, U. From the series, we spot the vowels as follows:

  • A (between V and W)
  • U (between W and B)
  • E (between R and C)

Next, we verify whether each vowel is immediately preceded and followed by consonants:

  1. The vowel A is preceded by V and followed by W, both consonants.
  2. The vowel U is preceded by W and followed by B, both consonants.
  3. The vowel E is preceded by R and followed by C, both consonants.

Based on this analysis, all three vowels - A, U, and E are each flanked by consonants on both sides. Therefore, the number of such vowels is three.

Thus, the correct answer to the question "How many such vowels are there, each of which is immediately preceded by a consonant and also immediately followed by a consonant?" is:

Three

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