Question
Find the wrong number in the given number series.
7, 9, 16, 12, 25, 15, 36Solution
ATQ,
Alternate addition pattern:
7 → +2 → 9
9 → +7 → 16
16 → -4 → 12
12 → +13 → 25
25 → -10 → 15 ← Wrong
Correct should be:
25 → -6 → 19
19 → +17 → 36
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