Number Series Questions

Q:

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

 

567, 189, 63, ?, 7

 

A) 21 B) 30
C) 29 D) 31
 
Answer & Explanation Answer: A) 21

Explanation:
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Q:

 _ po _ mp _ n _ _ onmpo_.

A) opmpnm B) mponpo
C) mnompn D) mnopnm
 
Answer & Explanation Answer: C) mnompn

Explanation:

The pattern 'mpon' is repeated.

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13 5574
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. EJO, TYD, INS, XCH ?

A) NRW B) NSX
C) MRW D) MSX
 
Answer & Explanation Answer: C) MRW

Explanation:

There is a gap of four letters between the first and second, the second and third letters.
There is a gap of four letters between the last letter and the first letter of the next term.

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16 5478
Q:

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

 

15, 22, 31, 42, 55, ?

 

A) 60   B) 68  
C) 70   D) 74
 
Answer & Explanation Answer: C) 70  

Explanation:
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Q:

Find the missing number in the series:

219, 211, 204, 198, ?, 189

A) 189 B) 192
C) 193 D) 196
 
Answer & Explanation Answer: C) 193

Explanation:
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Q:

What will come in place of the question mark (?) in the given question?

452 + 312 ÷ 13 = 34 * ?

A) 18 B) 32
C) 26 D) 28
 
Answer & Explanation Answer:

Explanation:

452 + 312 ÷ 13 = 34 * ?

=> 452 + 312/13 = 34 * x

=> 452 + 24 = 34 * x

=> x = 476/34 = 14

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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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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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