Question
Find the wrong number in the series. 2, 4,
12, 10, 30, 16, 56Solution
ATQ,
Odd positions: ×2, ×3, ×4 → 2, 6, 24
Even positions: +2, +4, +6 → 4, 8, 14
So series should be: 2, 4, 6, 8, 24, 14, 56
16 is wrong, should be 14
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