Missing Numbers Quiz Set 009

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Question 1

One number is wrong in the series. Find the wrong number.

572, 284, 140, 72, 32, 14, 5

 A

14

 B

32

 C

72

 D

5

Soln.
Ans: c

Series moves from the end following the pattern: 5 × 2 + 4 = 14, 14 × 2 + 4 = 32, 32 × 2 + 4 = 68 and so on. Hence, the number 72 should be replaced by 68. So 72 is wrong here.


Question 2

One number is wrong in the series. Find the wrong number.

3, 5, 12, 39, 154, 772, 4634

 A

5

 B

3

 C

39

 D

154

Soln.
Ans: c

Series follows the pattern: −3 × 1 + 2 = 5, 5 × 2 + 2 = 12, 12 × 3 + 2 = 38, 38 × 4 + 2 = 154 and so on. Hence, the missing number will be 38. The number 39 is wrong here.


Question 3

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

121, 112, ?, 97, 91, 86

 A

102

 B

108

 C

99

 D

104

Soln.
Ans: d

Series is written in descending order with a difference of 9, 8, 7, 6 and 5, respectively. Hence, the missing number will be 104.


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.

6, 126, ?, 9, 108, 12, 7, 133, 19, 12, 72, 6

 A

21

 B

23

 C

30

 D

35

Soln.
Ans: a

Number between 1st and 3rd, 4th and 6th, 7th and 9th is the product of the adjacent numbers. Hence, the missing number will be 126/6 = 21.


Question 5

1438, 1429, 1417, 1402, (?)

 A

1378.

 B

1384.

 C

1387.

 D

1392.

Soln.
Ans: b

1438 ( - 9), 1429 ( - 12), 1417 ( - 15), 1402 ( - 18), 1384.


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Creative Commons License
This Blog Post/Article "Missing Numbers Quiz Set 009" by Parveen (Hoven) is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License.
Updated on 2019-08-18.

Posted by Parveen(Hoven),
Aptitude Trainer


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