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# Solved Examples(Set 3) - Series - Odd Man Out

 11. Find the odd man out. $1,9,16,51,121,169,225$ A. $51$ B. $1$ C. $169$ D. $16$

Explanation:

All the given numbers except $51$ are perfect squares.
 12. Find the odd man out. $1,4,9,17,25,36,49$ A. $49$ B. $9$ C. $1$ D. $17$

Explanation:

The pattern is $1^2,2^2,3^2,4^2,5^2,6^2,7^2$

But, instead of $4^2,$ $17$ is given.

 13. Find the odd man out. $2,5,10,17,26,38,50,65$ A. $38$ B. $26$ C. $65$ D. $50$

Explanation:

The pattern is
$1^2+1\\2^2+1\\3^2+1\\4^2+1\\5^2+1\\6^2+1\\7^2+1\\8^2+1$

But $38$ is given in place of $6^2+1$

 14. Find the odd man out. $18,16,12,24,11,34,46$ A. $16$ B. $34$ C. $11$ D. $46$

Explanation:

All the given numbers except $11$ are even numbers.
 15. Find the odd man out. $1,27,216,512,1024,1331$ A. $1024$ B. $1$ C. $27$ D. $512$
All the given numbers except $1024$ are perfect cubes.