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Question

Which of the following letter-number clusters will replace the question mark (?) in the given series? 6S, 24T, 12V, 48Y, 24C, ?

This question was previously asked in
RRB NTPC 2024 Undergraduate CBT 1 Question Paper (29-Aug-2025) (Shift 1)
The correct answer is

96H

This question tests pattern recognition and sequential reasoning. Let's analyze the given series: 6S, 24T, 12V, 48Y, 24C, ?

Notice that the series involves two alternating patterns:

  • Numbers: The numbers alternate between multiplying by 4 and dividing by 2. Let's trace this:
    • 6 x 4 = 24
    • 24 / 2 = 12
    • 12 x 4 = 48
    • 48 / 2 = 24
    • 24 x 4 = 96
  • Letters: The letters follow a sequence based on their positions in the alphabet. The pattern jumps ahead by a number of letters, then jumps back a smaller number. Let's analyze the jumps:
    • S (+19) → T
    • T (-12) → V
    • V (+22) → Y
    • Y (-15) → C

Combining the number and letter patterns, the next element in the series is 96H.

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Similar Questions

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    BDG, DFI, FHK, HJM, JLO, ?

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Important Questions from Alpha-numeric series

  1. Consider the following sequence of numbers: 5 1 4 7 3 9 8 5 7 2 6 3 1 5 8 6 3 8 5 2 2 4 3 4 9 6 How many odd numbers are followed by the odd number in the above sequence?

  2. Which one set of letters when sequentially placed at the gaps in the given letter series shall complete it? _sr_tr_srs_r_srst_

  3. Find the missing number in the following series: 43, 172, 86, 344, ?

  4. Select the missing numbers from the given alternatives

  5. How many such pairs of letters are there in the word JOURNEY (in forward direction), each of which has as many letter in the same sequence between them in the word as in the English alphabet?

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