### Discussion :: Number Series - Type 1 (Q.No.4)

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

Abhiram said: (Oct 10, 2010) | |

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: (Aug 31, 2011) | |

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

Santhikannan said: (Dec 2, 2011) | |

22-1=21 21+2=23 23-1=22 22+2=24 24-1=23 23+2=25 (Therefor 23+2=25) |

Vishal said: (Feb 18, 2012) | |

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 |

Dipti said: (Mar 26, 2013) | |

22-1=21. 21+2=23. 23-1=22. 22+2=24. 24-1=23. 23+2=25. Hence answer =25. |

Mahantesh said: (Apr 16, 2013) | |

It is 1 and -2 series 22-21 = 1, 21-23 = -2 and so on 22-21 = 1 21-23 = -2 23-22 = 1 22-24 = -2 24-23 = 1 23-25 = -2 Answer is 25. |

Ramesh said: (Dec 20, 2013) | |

22 - 21. 23 - 22. 24 - 23. therefore comes, 25. |

Satrujit said: (Mar 27, 2014) | |

-1,+2,-1,+2,-1,+2....So we can easily get the no is 25. |

Jiya said: (Mar 12, 2015) | |

There are alternative numbers 25. = 22 23 24 -------. And another alternative numbers: = 21 22 23 24. So the answer is 25. |

Aaj said: (Jun 28, 2015) | |

Why not 22? 22 21 23, 22 24 23, 22 27 23 can also happen right? |

Divya said: (Jul 25, 2015) | |

You can also see 1st letter is odd number and second 2 letters are even numbers. |

Akashdeep said: (Dec 8, 2015) | |

1 minus 2 plus. |

Sudhansu said: (Jul 9, 2016) | |

Series of -1 then +2, therefore the answer is 25. |

Siraj Dal said: (Aug 15, 2016) | |

There is a 2 no.of sequence. 22, 21 23, 22 24, 23 ?(25), 24 |

Aditya Vamsi said: (Aug 24, 2016) | |

Subtraction and adding series of the number 1and 2 takes place here. |

M.Raghuram Pgdm 1 said: (Aug 24, 2016) | |

It is simple and the logic is take 1 difference and add 2 alternatively. |

Jhansi said: (Aug 24, 2016) | |

Logic of this problem is alternate addition to the numbers. |

K.Sujitha said: (Aug 24, 2016) | |

For an alternative number, we have to add 1. |

Sathishkumar said: (Nov 16, 2016) | |

22 - 1 = 21. 21 + 2 = 23. 23 - 1 = 22. 22 + 2 = 24. 24 - 1 = 23. 23 + 2 = 25. Hence answer = 25. |

Zhia said: (Dec 16, 2016) | |

Now, I understand this. Thanks :). |

Ankur Sharma said: (Mar 8, 2017) | |

This is soo simple, take all series in two pairs like, (22, 21), (23, 22), (24, 23),(25,24), .... |

Shiv Dhakad said: (Jul 9, 2017) | |

22-21 = 1, 21-23 = -2, 23-22 = 1, 22-24 = -2, 24-23 = 1, 23-25 = -2. |

Kavi said: (Feb 24, 2018) | |

22-1=21 23-1=22 24-1=23 25-1=24 So it comes as 21,22,23,24. |

Heidi said: (Feb 28, 2018) | |

Really well explained, thanks @Kavi. |

Dayanidhi Parida said: (May 16, 2018) | |

Thanks for explaining the solution. |

Subhamita Dutta said: (Jun 14, 2019) | |

Thanks for explaining the solution. |

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