Question
21, 44, 78, 121, 179,
246 The following numbers form a series. Find the odd one out.ÂSolution
ATQ, 21 + 23 = 44 44 + 34 = 78 78 + 45 = 123 123 + 56 = 179 179 + 67 = 246 Therefore, 123 should be in place of 121.
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