Question
Find the wrong number, in the given number series.
2, 5, 11, 23, 47, 97, 191Solution
ATQ,
Let's observe the pattern:
2 × 2 + 1 = 5
5 × 2 + 1 = 11
11 × 2 + 1 = 23
23 × 2 + 1 = 47
47 × 2 + 1 = 95, But given is 97
95 × 2 + 1 = 191
Wrong number: 97
Correct number: 95
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