Missing Numbers Quiz Set 005

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Question 1

Find the missing number.

100, 50, 52, 26, 28, ?, 16, 8

 A

30

 B

36

 C

14

 D

32

Soln.
Ans: c

2nd number is half of 1st number, 4th number is half of 3rd number and so on.


Question 2

Two numbers of the following series have been put inside round brackets. Study the series and pick your answer from the four choices given below.

4, 6, 10, (12), 16, (14), 22

 A

if the terms in both the brackets are right.

 B

if the term in the first bracket is right but the term in the second bracket is wrong.

 C

if the term in the first bracket is wrong but the term in the second bracket is right.

 D

if the terms in both the brackets are wrong.

Soln.
Ans: b

The number in the 2nd bracket, 14 is wrong and should be replaced by 18 so that series moves successively with a difference of 2 and 4 alternatively.


Question 3

Find the missing number.

2, 9, 28, 65, ?

 A

121.

 B

195.

 C

126.

 D

103.

Soln.
Ans: c

Method used to form the series is:

(1)³ + 1, (2)³ + 1, (3)³ + 1, (4)³ +1,....

Therefore, the missing number is (5)³ + 1 = 126.


Question 4

Directions: One number is missing in the series. You have to understand the pattern of the series and then insert the missing number.

17, 7, 24, 19, 9, 28, ?, 8, 31, 27, 10, 37

 A

20

 B

21

 C

18

 D

23

Soln.
Ans: d

Each 3rd number is the sum of preceding two numbers. i.e., 17 + 7 = 24, 19 + 9 = 28, 23 + 8 = 31. Hence, the missing number will be 23.


Question 5

In the following number series, one of the numbers does not fit into the series. Find the wrong number.

104, 101, 90, 86, 76, 71, 62, 55

 A

55

 B

62

 C

76

 D

86

Soln.
Ans: a

Number 55 is wrong and should be replaced by 56. There are two series - 104, 90, 76, 62 with a difference of 14, and 101, 86, 71, 56 with a difference of 15.


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Creative Commons License
This Blog Post/Article "Missing Numbers Quiz Set 005" by Parveen (Hoven) is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License.
Updated on 2017-04-07.

Posted by Parveen(Hoven),
Aptitude Trainer


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