In following questions, one term in number series is incorrect.
Find out the incorrect number 3, 2, 8, 9, 13, 22, 18, 32, 23, 42
Option:
A. 8
B. 9
C. 13
D. 22
Answer: B . 9
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Justification:
The given sequence is a combination of two series :
I. 3, 8, 13, 18, 23 and
II 2, 9, 22, 32,42
The pattern in I is + 5 and the pattern in II is + 10.
So, in II, 9 is wrong and must be replaced by (2 + 10) i.e. 12
