Logical Reasoning - Number Series - Discussion

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"Nothing in life is to be feared, it is only to be understood."

- Marie Curie

In each series, look for the degree and direction of change between the numbers. In other words, do the numbers increase or decrease, and by how much

Look at this series: 22, 21, 23, 22, 24, 23, ... What number should come next?

[A].	22	[B].	24
[C].	25	[D].	26

Answer: Option A

Explanation:

In this simple alternating subtraction and addition series; 1 is subtracted, then 2 is added, and so on.

Abhiram said: (Sun, Oct 10, 2010 12:47:05 AM)

Another way to solve problem: Sum alternatively it will get 22 + 1 = 23 23 + 1 = 24 21 + 1 = 22 22 + 1 = 23 so 24 + 1 = 25.

Pundik Vinayak said: (Wed, Aug 31, 2011 11:58:26 PM)

Here there is two no series following. 22 23 24 25 26 27. 21 22 23 24 25 26.

Vishal said: (Sat, Feb 18, 2012 04:18:06 PM)

We can see in in the pair of two number ... (A)22 & 21 (B)23 & 22 (C)24 & 23 Answer in the series is (D) 25 & 24