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Odd Man Out and Series
1.3, 5, 11, 14, 17, 21

Answer:Option 1

Explanation:

Solution:
Each of the numbers except 14 is an odd number.
The number '14' is the only EVEN number.

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2.8, 27, 64, 100, 125, 216, 343

Answer:Option 1

Explanation:

Solution:
The pattern is 23, 33, 43, 53, 63, 73. But, 100 is not a perfect cube.

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3.10, 25, 45, 54, 60, 75, 80

Answer:Option 1

Explanation:

Solution:
Each of the numbers except 54 is multiple of 5.

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4.6, 9, 15, 21, 24, 28, 30

Answer:Option 1

Explanation:

Solution:
Each of the numbers except 28, is a multiple of 3.

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5.1, 4, 9, 16, 23, 25, 36

Answer:Option 1

Explanation:

Solution:
Each of the numbers except 23, is perfect square.

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6.1, 4, 9, 16, 20, 36, 49

Answer:Option 1

Explanation:

Solution:
The pattern is 12, 22, 32, 42, 52, 62, 72. But, instead of 52, it is 20 which to be turned out.

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7.2, 5, 10, 17, 26, 37, 50, 64

Answer:Option 1

Explanation:

Solution:
(1*1)+1 , (2*2)+1 , (3*3)+1 , (4*4)+1 , (5*5)+1 , (6*6)+1 , (7*7)+1 , (8*8)+1
But, 64 is out of pattern.

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8.16, 25, 36, 72, 144, 196, 225

Answer:Option 1

Explanation:

Solution:
Each of the numbers except 72 is a perfect square.

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9.331, 482, 551, 263, 383, 362, 284

Answer:Option 1

Explanation:

Solution:
In each number except 383, the product of first and third digits is the middle one.

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10.835, 734, 642, 751, 853, 981, 532

Answer:Option 1

Explanation:

Solution:
In each number except 751, the difference of third and first digit is the middle one.

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