Number And Alphabet Sequence - Alphabet Set


 
 
Concept Explanation
 

Number And Alphabet Sequence - Alphabet Set

In Alphabet Series section, a string of alphabets, either in a single file or in combination form a sequence. This sequence comes together following a definite rule. The candidate is expected to detect this rule and answer the questions at the end. In this type of question, students are asked to find the place of an alphabet or a word based on the different types of arrangement.

Number and Alphabet Sequence - Alphabet Set

In this type of questions, generally a letter - series is given, be it the English alphabets from A to Z or randomised sequence of letters. The candidate is then required two trace the letters satisfying certain given conditions as regards their positions in the given sequence or the sequence obtained by performing certain given operations on the given sequence.

Example 1 : Answer the given question based on the following English alphabet :

A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

If every alternate letter, starting with A, is removed from the alphabet, which letter among the remaining letters would be the third to the right of the fifth letter the right ?

(a)  X                 (b) V                 (c) L                 (d) J                         (e) None of these

Answer : Leaving out A, C, E, G,   .............. , W, Y, we obtain the following letter-series :

B D F H J L N P R T V X Z

Counting from the right in the above letter - series, the fifth letter is R. Counting from R, the third letter to the right is X. So, the answer is (a).

Example 2 : Directions : Each of the following questions is based on the following alphabet - series :

A B C D E F G H I J K L M N O P Q R S T U V X Y Z

Suppose the first and the second letters of the English alphabet changed places, also the third and the fourth, the fifth and sixth, and so on. In the new alphabet, thus formed, which letter would be the 14th ?

(a) H                   (b) K                   (c) L                 (d) M

Answer (d) : The new alphabet - series is :

B A D C F E H G J I L K M N P O R Q T S V U X W Z Y

Clearly, the 14th letter in the above series is M.

Sample Questions
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Question : 1

The following question is based on the following alphabet -series :

A B C D E F G H I J K L  M N O P Q R S T U V W X Y Z 

If the above alphabet is written in the reverse order, what will be the fourth letter to the right of the thirteenth letter from the left?

Right Option : A
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Question : 2

The following question is based on the following alphabet -series :

A B C D E F G H I J K L  M N O P Q R S T U V W X Y Z 

If the alphabet  is written in the reverse order and every alternate letter starting with Y  is dropped , which letter will be exactly in the middle of the remaining letters of the alphabet?

Right Option : B
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Question : 3

How many such D's are there in the following letter sequence each of which is not immediately preceded by A and not immediately followed by A only ?

D H A D A E V U Q A D A K L J K L W K A D A I V O P D A W J D K A D A  D U A D A T R D A O

Right Option : B
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