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QUESTION
Q
Find out the wrong number in the number series:
7, 12, 40, 222, 1742, 17390, 208608
Solution
The pattern of the number series is:
7 × 2 − 2 = 12
12 × 4 − (2 + 6) = 48 − 8 = 40
40 × 6...
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