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90, 180, 12, 50, 100, 200, ?, 3, 50, 4, 25, 2, 6, 30, 3

/ Series Completion, Verbal Reasoning / By
Question: 90, 180, 12, 50, 100, 200, ?, 3, 50, 4, 25, 2, 6, 30, 3
[A].

150

[B].

175

[C].

225

[D].

250

Answer: Option A

Explanation:

Clearly, 90 = 30 x 3, 180 = 6 x 30, 12 = 2 x 6, 50 = 25 x 2, 100 = 4 x 25, 200 = 50 x 4.

So, missing term = 3 x 50 = 150.