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Four letters are shown and a fifth is missing. Work out the spacing and name the term that completes the run.
A, E, I, M, ?

  • A.P
  • B.Q
  • C.R
  • D.N

Answer: A

Correct answer: Q

The step is four places each time: A(1) to E(5), E to I(9), I to M(13). Four beyond M(13) is position 17, which is Q. Counting positions rather than reciting the alphabet is the quicker check here, because a four-step gap is easy to miscount by one when read aloud. N would be a single step and P a three-step, neither of which matches the pattern already established. A four-step series covers the alphabet in six terms and then wraps, so questions of this shape rarely run long enough for the wrap to be needed.

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