497
Q:

What should come in place of question mark (?) in the following number series?

 132       156       ?         210          240          272 

A) 196 B) 182
C) 199 D) 204

Answer:   B) 182



Explanation:

The given series follows a logic that

11 x 12, 12 x 13, 13 x 14, 14 x 15, 15 x 16,...

So the missing number is 13 x 14 = 182

Subject: Number Series
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Q:

What letters will fill the blank?

Z, X, V, T, R, __,__

A) M, N B) P, N
C) O, K D) K, S
 
Answer & Explanation Answer: B) P, N

Explanation:

Here the letter series is alternative reverse order series. So we get P, N.

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Filed Under: Number Series

35 31937
Q:

Find the wrong number in the series.

1, 2, 6, 15, 31, 56, 91

A) 31 B) 15
C) 56 D) 91
 
Answer & Explanation Answer: D) 91

Explanation:

The difference of the two consecutive numbers are 1, 4, 9, 16, 25, 35. 

This is clearly , +12, +22, +32, +42, +52,+62 

Here 35 is wrong, So our wrong number is 91

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Filed Under: Number Series

623 126824
Q:

Which Number would come in place of the underline mark in the series.

3, 9, 21, ___ , 93

A) 39 B) 45
C) 48 D) 51
 
Answer & Explanation Answer: B) 45

Explanation:

First difference is 6 and second is 12. But if we take third as 18, then fourth difference will be 24. Then 93 can not be the last term.

So we have to take the difference as 6, 12, 24 and 48. 

So Answer is 21+24 = 45 

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Filed Under: Number Series

18 29815
Q:

What comes next in the series...

1A2, 3C4, 7G8, ___

A) 15O16 B) 16P17
C) 14O15 D) 13P14
 
Answer & Explanation Answer: A) 15O16

Explanation:

The first digit is formed by adding the numbers which are the results of powers of 2 increased by one and second letter is the corresponding alphabet to that number...last number is the next number to the first one...therefore

15=7+8 (i.e. 2^3)

O is corresponding alphabet to 15

and 16 comes after 15 

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Filed Under: Number Series

18 30362
Q:

H T 6 # E 7 $ K I L % 3 P @ 2 A J R U 4 * V D

What will come in place of the question mark(?) in the following series based on the above arrangement ?

T#6  7K$  L3% ?

A) @2A B) A@2
C) 2A@ D) None of these
 
Answer & Explanation Answer: D) None of these

Explanation:
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Filed Under: Number Series
Exam Prep: Bank Exams
Job Role: Bank PO

18 27212
Q:

prp  qrp  prr  pqr  qrp  rpr  qqr  rpr  qpr  qrr qpr  qpr

If every third letter starting from the left is replaced by a number beginning with 1 then which letter/ number will be 16th from the right?

A) q B) r
C) 6 D) 7
 
Answer & Explanation Answer: D) 7

Explanation:

New sequence is as follows:

pr1  qr2  pr3  pq4  qr5  rp6  qq7  rp8  qp9  qr10  qp11  qp12

16th from the right  end is 7

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Filed Under: Number Series

8 21362
Q:

Which of the following groups of alphabets should replace the blank spaces so that the group of alphabets, given in bold, follow a logical pattern from the preceding and the following group of alphabets?

b w _ y z a,  d s t u v _ ,  _ o p q r e 

A) x, e, d B) x, c, f
C) x, e, n D) x, c, d
 
Answer & Explanation Answer: B) x, c, f

Explanation:

b w x y z a d s t u v cf o p q r e

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Filed Under: Number Series

4 4577
Q:

Find the wrong number in the given series.

8, 27, 125, 343, 1381

A) 27 B) 8
C) 343 D) 1381
 
Answer & Explanation Answer: D) 1381

Explanation:

Given series follows Cubes on Prime Numbers 

 

i.e 23, 33, 53,...but  93is 1331

 

so 1381 is wrong

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Filed Under: Number Series
Exam Prep: AIEEE , Bank Exams , CAT , GATE
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142 68391