Find out the wrong term: 3, 7, 15, 39, 63, 127, 255, 511
A. 15
B. 39
C. 63
D. 127
Answer: Option B
Solution(By Examveda Team)
The correct pattern is × 2 + 1.So, 39 is wrong and must be replaced by (15 × 2 + 1) i.e., 31.
This Question Belongs to Competitive Reasoning >> Number Series Completion
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