Which letter group is the odd one out: JR, BY, DW, HS?

JRCorrect answerYour answerBYCorrect answerYour answerDWCorrect answerYour answerHSCorrect answerYour answer

Show the answer and explanation

CorrectNot quiteAnswer A

Correct answer: A

B (2nd) and Y (25th) are opposite letters: $2 + 25 = 27$ . So are D and W $(4 + 23)$ and H and S $(8 + 19)$ .
J is 10th and R is 18th, and $10 + 18 = 28$ . The opposite of J is Q, so JR is the odd one out.

Worth noting

The gaps between the two letters (23, 19, 11, 8) follow no pattern, so the gap is not the rule here. When gaps fail, test whether the two letters are opposites.

Concept: Odd one out: opposite-letter pairs
Typical timeTypical: 70 s
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The rule this testsClassification: the odd one out

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Which letter group is the odd one out: JR, BY, DW, HS?

Explanation