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 Number Series Questions

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Q:

In the following question, select the missing number from the given series.

 

15, 7.5, 7.5, ?, 22.5, 56.25

 

A) 10.25 B) 11.25  
C) 11 D) 12.5
 
Answer & Explanation Answer: B) 11.25  

Explanation:
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Filed Under: Number Series
Exam Prep: Bank Exams , CAT

6 5461
Q:

In the following question, various terms of an alphanumerical series are given with one or more terms missing as shown by (?). Choose the missing terms out of the given alternatives. Q1F, S2E, U6D, W21C, ?

A) Z88B B) Y88B
C) Y44B D) K25P
 
Answer & Explanation Answer: B) Y88B

Explanation:

The first letter moves two steps forward. The last letter moves one steps backward. The number series runs as follows :
1 x 1 + 1 = 2
2 x 2 + 2 = 6
6 x 3 + 3 = 21
21 x 4 + 4 = 88.

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9 5427
Q:

Find the wrong number from the following series ?
7   18   40   106   183   282   403

A) 18 B) 183
C) 40 D) 106
 
Answer & Explanation Answer: C) 40

Explanation:

The given series follows the rule,
+(11x1), +(11x3), +(11x5), +(11x7), +(11x9),....

So starting from 7, 7 + 11 = 18, 18 + 33 = 51, 51 + 55 = 106, ...
So wrong number is 40 which is to be 51.

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Exam Prep: AIEEE , Bank Exams , CAT , GATE , GRE
Job Role: Bank Clerk , Bank PO

9 5422
Q:

11M13, 13Q17, ? , 17V22 , 19W23

A) 15U21 B) 15R18
C) 15S19 D) 15T20
 
Answer & Explanation Answer: D) 15T20

Explanation:

In the given series

 

1st term has odd number starting from 11, So the Series is 11, 13, 15, 17, 19 

 

2nd term has an alphabet follwed by its alpha numeric number in the order +4, +3, +2, +1. So  the Series is M13, Q17, T20, V22, W23

 

Therefore, 15T20 is the answer.

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8 5172
Q:

Which number comes next in the series?

1, 5, 2, 6, 3, 7, ?

A) 6 B) 5
C) 4 D) 3
 
Answer & Explanation Answer: C) 4

Explanation:
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Exam Prep: Bank Exams

0 5089
Q:

In the following question, select the missing number from the given series.

63, 56, 50, 43, 37, 30, ?

A) 23 B) 24
C) 29 D) 21
 
Answer & Explanation Answer: B) 24

Explanation:
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Exam Prep: Bank Exams

0 5058
Q:

Find the missing (?) in the series.

 

3, 5, 9, 11, ?, 33, 65,...

A) 23 B) 21
C) 17 D) 15
 
Answer & Explanation Answer: D) 15

Explanation:
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Exam Prep: Bank Exams

1 4972
Q:

In the following question, various terms of an alphanumerical series are given with one or more terms missing as shown by (?). Choose the missing terms out of the given alternatives. 3F, 6G, 11I, 18L, ?

A) 27Q B) 27P
C) 25N D) 21O
 
Answer & Explanation Answer: B) 27P

Explanation:

The letters move 1, 2, 3, ... steps forward.
The numbers increase by + 3, + 5, + 7, + 9....

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9 4933