6
Q:

What should be replaced in the place of '?' in the following series ?

JAK, KBL, LCM, MDN, ?

A) MEN B) NEM
C) NEO D) OEP

Answer:   C) NEO



Explanation:

This is an alternating series in alphabetical order. The middle letters follow the order ABCDE. The first and third letters are alphabetical beginning with J. The third letter is repeated as a first letter in each subsequent three-letter segment.

Subject: Number Series
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Q:

Choose the correct alternative that will continue the same pattern and replace 'x' in the series 6834,6151,5536,4983,x

A) 4467 B) 4538
C) 4184 D) 4485
 
Answer & Explanation Answer: D) 4485

Explanation:

Each term in the series is obtained by subtracting from the preceding term the number formed by the first three digits of preceding term
So,missing term is 4983-498=4485

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Filed Under: Number Series

10 6728
Q:

Choose the correct alternative that will continue the same pattern and replace 'x' in the series 3,12,27,48,75,x,147

A) 108 B) 127
C) 112 D) 85
 
Answer & Explanation Answer: A) 108

Explanation:

The terms of the given series are 3*(1*1),3*(2*2),3*(3*3),3*(4*4), . . . .
So,missing term is 3*(6*6)=108

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Filed Under: Number Series

3 3965
Q:

Choose the correct alternative that will continue the same pattern and replace 'x' in given series 1,2,6,15,31,56,x

A) 65 B) 78
C) 81 D) 92
 
Answer & Explanation Answer: D) 92

Explanation:

The pattern is + 1*1,+ 2*2, +3*3, + 4*4,+ 5*5,+ 6*6, . . . . . . .
So missing term is 56+36=92

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Filed Under: Number Series

12 7873
Q:

Choose the correct alternative that will continue the same pattern and replace 'x' in series 5,15,17,85,89,623,x

A) 825 B) 759
C) 629 D) 675
 
Answer & Explanation Answer: C) 629

Explanation:

The pattern is *3,+2,*5,+4,*7,+6, . . . . .
So missing term is 623+6=629

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Filed Under: Number Series

15 9090
Q:

Choose the correct alternative that will continue the same pattern and replace 'x' in series 1,2,5,10,25,50,x,250

A) 75 B) 150
C) 125 D) 100
 
Answer & Explanation Answer: C) 125

Explanation:

The pattern is *2,*5/2,*2,*5/2,*2, . . . . .
So missing term is 50*(5/2)=125

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Filed Under: Number Series

8 7940
Q:

Choose the correct alternative that will continue the same pattern and replace 'x' in series 6,18,42,78,x

A) 84 B) 126
C) 96 D) 108
 
Answer & Explanation Answer: B) 126

Explanation:

The pattern is +12,+24,+36,+48, . . . .
So,missing term=78+48=126

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Filed Under: Number Series

2 4468
Q:

Choose the correct alternative that will continue the same pattern and replace 'x' in series 4,9,25,x,121,169,289,361

A) 81 B) 36
C) 64 D) 49
 
Answer & Explanation Answer: D) 49

Explanation:

The given series consists of squares of consecutive prime numbers
2*2, 3*3, 5*5,  . . . . , 11*11, 13*13, 17*17

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Filed Under: Number Series

39 10990
Q:

Choose the correct alternative that will continue the same pattern and replace 'x' in series 1.5,1.55,1.65,1.8,x

A) 1.95 B) 2.0
C) 1.85 D) 2.05
 
Answer & Explanation Answer: B) 2.0

Explanation:

The pattern is +0.05,+0.1,+0.15, . . . .
so missing term =1.8+0.20=2.0

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Filed Under: Number Series

7 3747