Missing Numbers Quiz Set 036

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Question 1

Examine this series: 80, 50, 130, 100, 180, 150, 230. If another series is written with the same rule, what number would come in the place B: 900, A, B, C, D, E ?

 A

1050

 B

920

 C

1000

 D

950

Soln.
Ans: b

The series moves like this: -30, +80, -30, + 80, -30, +80... So 900 should be followed by A = 900 - 30 = 870, which should be followed by B = 870 + 50 = 920.


Question 2

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

5, 8, 10, 12, 15, 18, 20, 23

 A

8

 B

12

 C

15

 D

18

Soln.
Ans: b

Number 12 is wrong and should be replaced by 13. The series is 3 + 2 = 5, then 5 + 3 = 8, then 8 + 2 = 10, then 10 + 3 = 13, then 13 + 2 = 15, then 15 + 3 = 18. We are adding 2 and 3 alternatively.


Question 3

1, 2, 5, 12, 27, 58, 121, (?)

 A

247.

 B

248.

 C

249.

 D

246.

Soln.
Ans: b

Start with 1 and follow the pattern: 1 x 2 + 0 gives 2, 2 x 2 + 1 gives 5, 5 x 2 + 2 gives 12, 12 x 2 + 3 gives 27, 27 x 2 + 4 gives 58, 58 x 2 + 5 gives 121, 121 x 2 + 6 gives , 248.


Question 4

17, 19, 23, 29, (?), 37.

 A

31.

 B

33.

 C

35.

 D

36.

Soln.
Ans: a

17, 19, 23, 29, 31, 37. This series is of prime numbers whose first term is 17 and the last term is 37.


Question 5

What is missing?

 A

17.

 B

48.

 C

19.

 D

20.

Soln.
Ans: a

This is a series with following specific type: 4 (+ 1) 5 (+ 2) 7 (+ 3) 10 (+ 11) (+ 2) 13 (+ 3) 16 (+ 1) 17.


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Creative Commons License
This Blog Post/Article "Missing Numbers Quiz Set 036" 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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