47
Q:

What is the next number of the following sequence ?

21, 77, 165, 285, ......

A) 404 B) 415
C) 426 D) 437

Answer:   D) 437



Explanation:

The series follow the rule,

 


21 = 
77 = 92-4
165 = 132-4
285 = 172-4


5,9,13,17,21,(+4)...
In the same way next no. will be
212-4 = 441 - 4 = 437

Subject: Number Series
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A series is given with one term missing. Choose the correct alternative from the given ones that will complete the series.

 

64, 100, 169, 289, ?

 

A) 484 B) 444
C) 404 D) 468
 
Answer & Explanation Answer: A) 484

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A series is given with one term missing. Choose the correct alternative from the given ones that will complete the series.

 

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A series is given with one term missing. Choose the correct alternative from the given ones that will complete the series.

 

5, 30, 155, 780, ?

 

A) 4000 B) 3905
C) 3900 D) 3805
 
Answer & Explanation Answer: B) 3905

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A series is given with one term missing. Choose the correct alternative from the given ones that will complete the series.

 

8,21,60,177,?

 

A) 425 B) 528
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Answer & Explanation Answer: B) 528

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

 

9, 10, 13, 22, 49, ?

 

A) 117 B) 126
C) 115 D) 130
 
Answer & Explanation Answer: D) 130

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A series is given, with one number missing. Choose the correct alternative from the given ones that will complete the series.

 

0.05, -0.1, ? , -0.4, 0.8

 

A) -0.2 B) 0.25
C) -0.25 D) 0.2
 
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A series is given with one term missing. Choose the correct alternative from the given ones that will complete the series.

 

9, 1331, 18, 121, 27, ?

A) 19 B) 11
C) 17 D) 13
 
Answer & Explanation Answer: B) 11

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A series is given with one term missing. Choose the correct alternative from the given ones that will complete the series.

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A) 426 B) 576
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