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 Number Series Questions

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Q:

Find the next number in the series 265, 269, 278, 284, ?

A) 309 B) 319
C) 298 D) 415
 
Answer & Explanation Answer: A) 309

Explanation:

The pattern in the given series is +4, +9, +16, +25, ... i.e. 22,32,42,52...

The next number is 284+25 = 309.

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8 3722
Q:

Find the next number in the series 64, 2, 32, 72, 3, 24, 76, 4, 19, ....., 5, 15.6

A) 80 B) 78
C) 72 D) 70
 
Answer & Explanation Answer: B) 78

Explanation:

The pattern is 2x32=64, 3x24=72, 4x19=76

The next number = 5x15.6=78

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10 3706
Q:

In the following question, various terms of an alphabet series are given with one or more terms missing as shown by (?). Choose the missing terms out of the given alternatives. BAZ, DCY, FEX, ?

A) FXW B) FEY
C) HGW D) EFX
 
Answer & Explanation Answer: C) HGW

Explanation:

The first letter moves two steps forward.
The second letter moves 2 steps forward.
The third letter moves one step backward.

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4 3682
Q:

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

42, 47, 52, 57, ?, 67

 

A) 60 B) 62
C) 65 D) 63
 
Answer & Explanation Answer: B) 62

Explanation:
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1 3660
Q:

In the following questions a letter-series is given, in which some letters are missing. The missing letters are given in the proper sequence as one of the alternatives. Choose the correct alternatives. _ nmmn _ mmnn _ mnnm _

A) mnnm B) nmmn
C) nmnm D) nnmm
 
Answer & Explanation Answer: D) nnmm

Explanation:

The series is nnmm/nnmn/nnmm/nnmm.
The pattern 'nnmm' is repeated.

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5 3641
Q:

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

 

178, 172, 166, 160, ?, 148

 

A) 156 B) 154
C) 152 D) 158
 
Answer & Explanation Answer: B) 154

Explanation:
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Q:

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

 

87, 62, 42, 27, 17, ?

 

A) 7   B) 12  
C) 8   D) 10
 
Answer & Explanation Answer: B) 12  

Explanation:
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4 3622
Q:

The missing number in the series 9 81 ? 6561 59049

A) 729 B) 3561
C) 4213 D) None of the above
 
Answer & Explanation Answer: A) 729

Explanation:

The given series is 9 81 ? 6561 59049

It follows a pattern that

 

9

81 = 9 x 9

729 = 9 x 9 x 9

6561 = 9 x 9 x 9 x 9

59049 = 9 x 9 x 9 x 9 x 9

 

Hence, the missing number in the series is 729.

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3 3613