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Choose next:
1A, 2B, 4D, 8G, ?

  • A.16h
  • B.16j
  • C.16k
  • D.12j

Answer: B

Correct answer: 16k

The numbers double each time - 1, 2, 4, 8, then 16 - while the letters move on by one more place each time: A \( \xrightarrow{+1} \) B \( \xrightarrow{+2} \) D \( \xrightarrow{+3} \) G, so the next step is \( +4 \), taking G (the 7th letter) to the 11th, K. The term is 16K.

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