Question
In each of the following number series, one term is
wrong. Find the wrong term. 7, 14, 30, 63, 131, 266, 538Solution
Pattern is x 2 + increasing numbers 7 x 2 = 14 14 x 2 + 2 = 30 30 x 2 + 3 = 63 63 x 2 + 4 = 130 130 x 2 + 5 = 265 265 x 2 + 6 = 536 So the correct series should be: 7, 14, 30, 63, 130, 265, 536 Hence, 131 is the wrong term.
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