Aptitude - Problems on Numbers - Discussion

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Q.

Find out the incorrect number 11, 2, 21, 3, 32, 4, 41, 5, 51, 6                         
A. 21 B. 11
C. 32 D. 51

Answer: Option 32
Explaination:

 


The given sequence is a combination of two series :
I. 11, 21, 32, 41, 51 and
II. 2, 3, 4, 5, 6.
Clearly, the pattern in I is + 10.
So, 32 is wrong and should be replaced by (21 + 10) i.e. 31




Discussion

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