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Question

Find the odd set of letters from the given alternatives.

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
OQS

Odd Letter Set Identification

The question asks to identify the set of letters that does not follow the same pattern as the others. We need to analyze the relationship between the letters in each option.

Pattern Analysis of Letter Sets

We examine each option by considering the alphabetical position of the letters:

  • Option 1: OQS

    Positions: O = 15, Q = 17, S = 19

    Difference: \(17 - 15 = 2\), \(19 - 17 = 2\). The pattern is +2, +2.

  • Option 2: GEC

    Positions: G = 7, E = 5, C = 3

    Difference: \(5 - 7 = -2\), \(3 - 5 = -2\). The pattern is -2, -2.

  • Option 3: YWU

    Positions: Y = 25, W = 23, U = 21

    Difference: \(23 - 25 = -2\), \(21 - 23 = -2\). The pattern is -2, -2.

  • Option 4: MKI

    Positions: M = 13, K = 11, I = 9

    Difference: \(11 - 13 = -2\), \(9 - 11 = -2\). The pattern is -2, -2.

Determining the Odd Set

Options 2, 3, and 4 follow a consistent pattern of decreasing the alphabetical position by 2 for each subsequent letter.

Option 1 (OQS) is the odd set because it follows an increasing pattern (+2), while the others follow a decreasing pattern (-2).

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