Number Series - Number series MCQ

16:  

7,11,13,17, 19, __

A.

21

B.

29

C.

23

D.

31

 
 

Option: C

Explanation :

The series can be completed. by the next prime number.

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17:  

2,20,74,110,

A.

182

B.

110

C.

120

D.

160

 
 

Option: A

Explanation :

The difference between two consecutive numbers is divisible by 18.

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18:  

3,5, 9,17,33

A.

44

B.

65

C.

64

D.

49

 
 

Option: B

Explanation :

The difference between the two con- secutive terms are doubling, i.e., 2, 4,8, 16, 32. Thus 33 + 32 = 65.

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19:  

3,6, 6, 12,....18

A.

9

B.

72

C.

81

D.

38

 
 

Option: A

Explanation :

First is the half of the second number in every pair

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20:  

5,3,8,11....30

A.

13

B.

17

C.

19

D.

38

 
 

Option: C

Explanation :

5+3=8,11+19=30 etc

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