CLASSIFICATION(NUMBER CLASSIFICATION)

CLASSIFICATION:

Classification means grouping. If the objects or items are grouped on the basis of their common properties, this process is known as Classification. 

The candidate is required to sort out that object which does not belong or which does not has the similar qualities which are found in the remaining objects. This test is also known as Odd-Man Out Test, because the candidate is required to find out that item which is dissimilar or which has different qualities.

In this test the questions are designed to test the ability of the candidate to classify given objects and find one which does not has the common characteristics with the other objects of the group.

 2) NUMBER CLASSIFICATION:

In number classification, there is a similarity among the given numbers or group of numbers. The candidate has to identify the odd number or group of numbers which does not belong to the group.

☣The number classification is generally based on the following similarities:

• Square and square root of a number

• Cube and cube root of a number

• Even and odd number

• Prime number

• Divisibility test of a number

• Sum of digits of a number

☣Here are some tips to help you solve these types of questions:

1. Look for patterns: The first step is to try and identify patterns in the sequence of numbers. Look for common differences between consecutive numbers, such as addition, subtraction, multiplication or division. Try to find a consistent pattern in the sequence that explains the relationship between the numbers.

2. Consider the properties of numbers: Pay attention to the properties of the numbers in the sequence, such as whether they are odd or even, prime or composite, perfect squares, or have some other unique property.

3. Eliminate the options: Look for the number that stands out as being different from the others. Sometimes this can be a number that is significantly larger or smaller than the others or a number that is a multiple or a factor of the others.

4. Test your answer: Once you have identified the number that you think is the odd one out, test your answer by checking it against the rest of the sequence to see if it fits the pattern.

5. Be systematic: Try to approach the question in a systematic way, such as by writing out the sequence of numbers and analyzing it step by step. This can help you identify patterns and relationships that you might not notice otherwise.

6. Practice:Remember, practice makes perfect, so the more you practice solving odd one out questions in numbers, the better you will become at recognizing patterns and identifying rules.

                                           Examples

1) Choose the odd one in the following

(a) 2    

(b) 97      

(c) 51        

(d) 83

Ans: C

2) choose the odd one in the following

(a) 45.    

(b) 150.  

(c) 120.    

(d) 35

Ans: D