Question
Choose the correct alternative that will continue the same pattern and fill in the blank spaces:1, 2, 3, 6, 9, 18, (....), 54
Answer: Option B
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The numbers are alternately multiplied by 2 and 3/2.
Thus, 1 * 2 = 2, 2 * 3/2 = 3, 3 * 2 = 6, 6 * 3/2 = 9 and so on. Missing number = 18 * 3/2 = 27.
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