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Question

Pick the odd one out.

This question was previously asked in
RRB NTPC 2019 CBT 1 Question Paper (8-Mar-2021) (Shift 2)
The correct answer is
QD

Pattern Identification

To find the odd one out, we need to identify a pattern shared by most options. Let's analyze the alphabetical positions of the letters (A=1, B=2, ..., Z=26).

Option Analysis

Examine the relationship between the first and second letter in each pair:

  • TJ: T (20) and J (10). The relationship is $P(T) = 2 \times P(J)$, since $20 = 2 \times 10$.
  • VK: V (22) and K (11). The relationship is $P(V) = 2 \times P(K)$, since $22 = 2 \times 11$.
  • QD: Q (17) and D (4). There is no simple multiplicative relationship. $P(Q) \neq 2 \times P(D)$, as $17 \neq 2 \times 4$.
  • LF: L (12) and F (6). The relationship is $P(L) = 2 \times P(F)$, since $12 = 2 \times 6$.

Odd One Out Conclusion

Three pairs (TJ, VK, LF) follow the rule where the alphabetical position of the first letter is exactly double the position of the second letter. The pair QD does not conform to this pattern.

Therefore, QD is the odd one out.

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