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Question

Find the next term in the series.

X, V, T, R, P, ?

This question was previously asked in
RRB ALP/Technician 2018 CBT 2 Electronics Mechanic Question Paper (23-Jan-2019) (Shift 1)
The correct answer is

N

Finding the Next Term in the Letter Series X, V, T, R, P

This question asks us to identify the pattern in the given letter series and predict the next term based on that pattern. The series is X, V, T, R, P, ?.

Let's look at the position of each letter in the standard English alphabet:

  • A is the 1st letter
  • B is the 2nd letter
  • ...
  • Z is the 26th letter

Now, let's find the alphabetical position of each letter in the given series:

  • X is the \(24^{th}\) letter.
  • V is the \(22^{nd}\) letter.
  • T is the \(20^{th}\) letter.
  • R is the \(18^{th}\) letter.
  • P is the \(16^{th}\) letter.

Let's observe the difference in the positions of consecutive letters:

  • Position of V - Position of X = \(22 - 24 = -2\)
  • Position of T - Position of V = \(20 - 22 = -2\)
  • Position of R - Position of T = \(18 - 20 = -2\)
  • Position of P - Position of R = \(16 - 18 = -2\)

The pattern is clear: each subsequent letter in the series is obtained by moving two steps backward in the English alphabet from the previous letter.

To find the next term, we need to apply the same pattern to the last letter, which is P.

  • The position of P is \(16^{th}\).
  • Moving two steps backward means finding the letter at position \(16 - 2 = 14^{th}\).

The letter at the \(14^{th}\) position in the English alphabet is N.

Therefore, the next term in the series X, V, T, R, P, ? is N.

Let's verify the options:

  • Option 1: H (8th letter) - Does not fit the pattern.
  • Option 2: L (12th letter) - Does not fit the pattern.
  • Option 3: O (15th letter) - Does not fit the pattern.
  • Option 4: N (14th letter) - Fits the pattern as it is 2 positions before P.

Step-by-Step Solution for Finding the Next Term

  1. Write down the given series: X, V, T, R, P, ?.
  2. Determine the alphabetical position of each letter: X(\(24\)), V(\(22\)), T(\(20\)), R(\(18\)), P(\(16\)).
  3. Analyze the difference in positions between consecutive letters: \(22-24=-2\), \(20-22=-2\), \(18-20=-2\), \(16-18=-2\).
  4. Identify the pattern: Each term's position is 2 less than the previous term's position.
  5. Apply the pattern to the last term (P, position \(16\)): Next position = \(16 - 2 = 14\).
  6. Find the letter at the calculated position (\(14^{th}\)): The \(14^{th}\) letter is N.
  7. The next term in the series is N.

Revision Table: Letter Series Analysis

Term Letter Alphabetical Position Position Difference from Previous Term
1st X 24 -
2nd V 22 22 - 24 = -2
3rd T 20 20 - 22 = -2
4th R 18 18 - 20 = -2
5th P 16 16 - 18 = -2
6th ? 16 - 2 = 14 -2

Additional Information: Solving Letter Series Questions

Letter series questions are common in reasoning tests. To solve them effectively, consider these strategies:

  • Alphabetical Position: Assign numerical values to letters (A=1, B=2, ..., Z=26). Look for patterns in these numbers.
  • Skip Letters: Check if letters are being skipped in a regular pattern (e.g., skipping one letter, skipping two letters).
  • Reverse Alphabetical Order: Sometimes the series moves backward through the alphabet.
  • Vowels/Consonants: The pattern might involve only vowels or only consonants.
  • Combination of Patterns: Some complex series might combine two different patterns (e.g., alternating between two different rules).
  • Look for Cycles: The pattern might repeat after a certain number of terms.

Always write down the letters and their positions or skips to make the pattern visible. Practice with various types of letter series to improve pattern recognition skills.

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Similar Questions

  1. Select the number from among the given options that can replace the question mark (?) in the following series.

    175 221 267 313 359 ?

  2. In the following number pairs, the second number is obtained by applying certain mathematical operations to the first number. Which numbers should replace X and Y so that the pattern followed by the two numbers on the left side of :: is the same as that on the right side of ::?

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  3. Which of the following options should come in place of the question mark (?) in the given series? 
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  4. Refer to the following number and symbol series and answer the question that follows. Counting to be done from left to right only.

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Important Questions from Number Series

  1. What will come in place of question mark (?) in the following number series?

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  2. What will come in place of question mark (?) in the following number series?

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  3. What will come in the place of question mark (?) in the following number series?

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  4. What should come in place of the question mark ‘?’ in the following number series?

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  5. A series is given with one term wrong. Select that wrong term from the given alternatives.

    J12, M24, P48, S96, U192

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