Find the missing number: 2, 3, 4, 9, 8, 27, 16, (?)

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A 32
B 48
C 54
D 81

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Answer: D. 81

There are two alternating series. Series 1: 2, 4, 8, 16 (multiply by 2). Series 2: 3, 9, 27 (multiply by 3). The next number belongs to Series 2: 27 x 3 = 81.

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Find the missing number: 2, 3, 4, 9, 8, 27, 16, (?)

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