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 Odd Man Out Questions

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Q:

7 9 19 18 31 29

Find the odd number in the given Number Series?

A) 31 B) 29
C) 18 D) 19
 
Answer & Explanation Answer: B) 29

Explanation:

Here the given number series follows a pattern of two alternate series.

1. 7 19 31 ...(Difference of 12)

2. 9 18 27 ...(Difference of 9)

Here the odd number is 29 instead of 27

And the next number is 31 + 12 = 43 & 27 + 9 = 36

 

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12 38557
Q:

Find the Missing number in the given Series ?

 

2, 3, 6, 15, ? , 157.5

A) 87 B) 78.5
C) 56.5 D) 45
 
Answer & Explanation Answer: D) 45

Explanation:

Here given 

2, 3, 6, 15, ? , 157.5

2 x 1.5 = 3

3 x 2  = 6

6 x 2.5 = 15

15 x 3 = 45

45 x 3.5 = 157.5

Therefore, the missing number is 45

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7 38362
Q:

Find the odd one out?

6, 3, 3, 4.5, 10

A) 3 B) 4.5
C) 6 D) 10
 
Answer & Explanation Answer: D) 10

Explanation:

Here the given number series is 6, 3, 3, 4.5, 10

The odd one in the given series is 10

The pattern it follows is

6

6 x 0.5 = 3

3 x  1  = 3

3 x 1.5 = 4.5

4.5 x 2 = 9

 

Hence, the odd number is 10.

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7 38304
Q:

Find out the wrong number in the given sequence of numbers.

36, 54, 18, 27, 9, 18.5, 4.5

A) 4.5 B) 18.5
C) 54 D) 18
 
Answer & Explanation Answer: B) 18.5

Explanation:

The terms are alternatively multiplied by 1.5 and divided by 3. However, 18.5 does not satisfy it.

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32 35568
Q:

Find the next number in the series

 

143 143 136 110 ?

A) 91 B) 35
C) 47 D) 69
 
Answer & Explanation Answer: C) 47

Explanation:

The next number in the series is

143 143 136 110

      0    7      26 (Differences)

 13 - 1 , 23 - 1, 33 - 1, 43 - 1,...Now the next number is given by110 - (43 - 1) = 110 - 63 = 47.

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8 35525
Q:

Find out the wrong number in the given sequence of numbers.

6, 13, 18, 25, 30, 37, 40

A) 25 B) 30
C) 37 D) 40
 
Answer & Explanation Answer: D) 40

Explanation:

The differences between two successive terms from the beginning are 7, 5, 7, 5, 7, 5.

So, 40 is wrong.

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29 32372
Q:

Find out the wrong number in the given sequence of numbers.

5, 16, 6, 16, 7, 16, 9

A) 9 B) 7
C) 6 D) None of these
 
Answer & Explanation Answer: A) 9

Explanation:

Terms at odd places are 5, 6, 7, 8 etc. and each term at even place is 16.

So, 9 is wrong.

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19 30609
Q:

Find the missing number?

15, 30, ? , 40, 8, 48

A) 21 B) 8
C) 19 D) 10
 
Answer & Explanation Answer: D) 10

Explanation:

Given nuber series is 15, 30, ? , 40, 8, 48 

Here the number series follows a pattern that

15

15 x 2 = 30

30 ÷ 3 = 10

10 x 4 = 40

40 ÷ 5 = 8

8 x 6 = 48

Hence, the missing number in the series is 10.

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Filed Under: Odd Man Out - Quantitative Aptitude - Arithmetic Ability
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