Q200
Find out the wrong term: 3, 7, 15, 39, 63, 127, 255, 511
A.
15
B.
39
AnswerC.
63
D.
127
Answer: Option B
Solution
Answer: Option B
Solution:
The correct pattern is × 2 + 1.So, 39 is wrong and must be replaced by (15 × 2 + 1) i.e., 31.