Question 1

Identify the number that does NOT belong to the following series.
2, 6, 14, 30, 62, 126, 250

Solution

The series follows pattern as,
2 + $$2^2$$ = 2 + 4 = 6
6 + $$2^3$$ = 6 + 8 = 14
14 + $$2^3$$ = 14 + 16 = 30
30 + $$2^4$$ = 30 + 32 = 62
62 + $$2^5$$ = 62 + 64 = 126
126 + $$2^6$$ = 126 + 128 = 254

$$\therefore$$ The correct answer is option C.


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