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IBM Aptitude Question papers 2014| IBM Latest Placement Drive Aptitude Question Answers 2014

IBM Number series questions for practice
Find the odd man out.

1. 3, 5, 11, 14, 17, 21

A. 21
B. 17
C. 14
D. 3
.

Explanation:

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

A. 27
B. 100
C. 125
D. 343
.

Explanation:

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

A. 10
B. 45
C. 54
D. 75
.

Explanation:

Each of the numbers except 54 is multiple of 5.

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4. 396, 462, 572, 427, 671, 264

A. 396
B. 427
C. 671
D. 264
.

Explanation:

In each number except 427, the middle digit is the sum of other two.

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5. 6, 9, 15, 21, 24, 28, 30

A. 28
B. 21
C. 24
D. 30
.

Explanation:

Each of the numbers except 28, is a multiple of 3.Find the odd man out.

6. 1, 4, 9, 16, 23, 25, 36

A. 9
B. 23
C. 25
D. 36
.

Explanation:

Each of the numbers except 23, is perfect square.

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7. 1, 4, 9, 16, 20, 36, 49

A. 1
B. 9
C. 20
D. 49
.

Explanation:

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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8. 2, 5, 10, 17, 26, 37, 50, 64

A. 50
B. 26
C. 37
D. 64
.

Explanation:

(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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9. 10, 14, 16, 18, 21, 24, 26

A. 26
B. 24
C. 21
D. 18
.

Explanation:

Each of the numbers except 21 is an even number.

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10. 16, 25, 36, 72, 144, 196, 225

A. 36
B. 72
C. 196
D. 225
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