Question
Find the wrong number in the given number series.
10, 21, 14, 25, 18, 30Solution
ATQ,
10 + 11 = 21
21 β 7 = 14
14 + 11 = 25
25 β 7 = 18
18 + 11 = 29
So, 29 should come in place of 30.
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