Question
Find the wrong number in the given number series.
5, 30, 255, 860, 2105, 4130Solution
ATQ,
5 + 5² = 30
30 + 15² = 255
255 + 25² = 880
880 + 35² = 2105
2105 + 45² = 4130
Therefore, 880 should come in place of 860. So, 860 is the odd one out.
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