Q99
One term in the number series is wrong. Find out the wrong term. 1, 5, 5, 9, 7, 11, 11, 15, 12, 17
A.
11
B.
12
AnswerC.
17
D.
15
Answer: Option B
Solution
Answer: Option B
Solution:
The given sequence is a combination of two series:I. 1, 5, 7, 11, 12 and II. 5, 9, 11, 15, 17
The pattern in both I and II is + 4, + 2, + 4, + 2. So, 12 is wrong and must be replaced by (11 + 2) i.e. 13.