Question
Choose the correct alternative that will continue the same pattern and fill in the blank spaces:3, 7, 15, 31, 63, (....)
Answer: Option C
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Each number in the series is the preceding number multiplied by 2 and then increased by 1. Thus, (3 * 2) + 1 = 7, (7 * 2) + 1 = 15, (15 * 2) + 1 = 31, and so on. Missing number = (63 * 2) + 1 = 127.
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