What letter comes next: Z, X, U, Q, ___?

Correct answer: B. L

The series moves backwards with growing gaps: Z→X (−2), X→U (−3), U→Q (−4). The next gap is −5, so Q→L. The position numbers are 26, 24, 21, 17, 12.

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Answer and explanation

The correct answer is B. L

The series moves backwards with growing gaps: Z→X (−2), X→U (−3), U→Q (−4). The next gap is −5, so Q→L. The position numbers are 26, 24, 21, 17, 12.