Question
Find the wrong number, in the given number series.
2, 5, 10, 17, 26, 39, 52Solution
ATQ,
Check the differences:
5 - 2 = 3
10 - 5 = 5
17 - 10 = 7
26 - 17 = 9
39 - 26 = 13
52 - 39 = 13
The pattern should be: +3, +5, +7, +9, +11, +13
But here after 26, we get 39 (+13) instead of 26 + 11 = 37
Wrong number: 39
Correct number: 37
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