Question
In each of the following number series, one term is wrong. Find the wrong term. 2, 9, 28, 65, 128, 217, 344
Solution
ATQ, Pattern is n³ + 1 1³ + 1 = 2 2³ + 1 = 9 3³ + 1 = 28 4³ + 1 = 65 5³ + 1 = 126 6³ + 1 = 217 7³ + 1 = 344 So the correct series should be: 2, 9, 28, 65, 126, 217, 344 Hence, 128 is the wrong term.
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