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IBPS PO Exam: Reasoning: Coding Decoding - Study Material

Sep 17, 2013 10:48 IST

    Institute of Banking and Personnel Selection (IBPS) will shortly conduct the Common Written Examination (CWE) for satisfying the vacancy of the Probationary Officer post with eligible candidates. IBPS PO Exam 2013 will held on 19 October 2013, 20 October 2013, 26 October 2013, and 27 October 2013. The written examination has 5 different sections that are General Awareness, English Language, Reasoning, Quantitative Aptitude, and Computer Knowledge.

    The Reasoning Section of IBPS PO Exam comprises 40 questions from different topics like Classification, Analogy, Coding Decoding, Direction Sense, Blood Relation, etc. Here, Jagranjosh deliver study material on every topic for helping aspirants in preparing for the upcoming IBPS PO Exam 2013.

    Coding Decoding

    Coding Decoding test is to judge a candidate’s ability to decipher the code language. Coding is the process of converting a word into another language by using letters and numbers while decoding is to convert the coded value back into the normal language. In each question of this topic a word and coded form of the word will be given to the student. A student will required to decode the logic behind this coding and then apply the logic to another given word to find the answer in form of a code.

    English alphabets and their corresponding number values helps the candidate to increase the performance in this area. The position of the letter in the English Alphabet is considered to be the value of the alphabet in questions on letter series. Also, when we are counting from A to Z, we again start with A, i.e. we treat the letters as being cyclic in nature. While attempting the letter series one should know the value of each of the alphabet as

    Alphabets in natural series are:

    A 1 N 14
    B 2 O 15
    C 3 P 16
    D 4 Q 17
    E 5 R 18
    F 6 S 19
    G 7 T 20
    H 8 U 21
    I 9 V 22
    J 10 W 23
    K 11 X 24
    L 12 Y 25
    M 13 Z 26

    The Word EJOTY is very helpful in finding the position of the alphabet as

    E J O T Y
    5 10 15 20 25

    For example, if we want to find the position of the alphabet ‘S’, then as we know that ‘T’ is 20, so ‘S’ is 20 - 1 = 19. Also, we can find the position of an alphabet from the end by subtracting its value from 27. For example, the position of D from the end is 27 – 4 = 23.

    The pattern below is very useful to find many types of question in Alphabet Series when we write the last 13 alphabets in front of the first 13 alphabets of the English:

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

    The questions on coding and decoding are basically of three types as given below.


    1. In a certain code ‘SHIMLA’ is written as ‘RGHLKZ, how will PATNA be coded then?

    a) OZTMZ    b) OZSMZ    c) QBUMB    d) OZTZM

    Sol: Each letter is coded as the letter previous to it, i.e. S = R, H = G, I = H, M = L, L = K, A = Z. PATNA will become OZSMZ. Hence the answer is (b).


    2. If LODES is coded as 46321, how will you code the word DOES?

    a) 1234        b) 4321         c) 3621         d) 3261

    Sol: Here, you will observe that all the letters of DOES are included in the letters of LODES, for which you have the code D = 3, O = 6, E = 2, S = 1. Therefore DOES = 3621. So, the answer is (d).


    3. In a certain code ‘415’ means ‘milk is hot’; ‘18’ means ‘hot soup’; and ‘895’ means ‘soup is tasty’. What number will indicate the word ‘tasty’?

    a) 9    b) 8    c) 5    d) 4

    Sol: The code for ‘hot’ is 1.So, the code of ‘soup’ is 8. Now the code of ‘is’ is 5. Hence we can say that the code of ‘tasty’ is 9. So, the answer is (a)

    Questions From Previous Year Papers

    Directions (Q. 1-2): Study the following information and answer the given question. [RBI Officer Exam – 2011]

    In a certain way, ‘PROJECT’ is related to ‘CEOPRT’, ‘PLANE’ is related to ‘ELNP’ and ‘WIN’ is related to ‘NW’.

    1. Following the same pattern, ‘ORGANISED’ will be related to

    5) Cannot be determined

    Answer: (3)

    In every word, the middle element is dropped and rest of the alphabets are arranged in alphabetical order.

    2. Following the same pattern, ‘DISTANCE’ will be related to

    2) ACDEINS
    3) ACDINST
    4) ACDNSTI
    5) Cannot be determined

    Answer: (5) Following the same pattern, DISTANCE cannot be related as it contains even number of alphabets while others contain odd number of alphabets. Therefore, there is no middle letter in the given word DISTANCE.

    Jagranjosh.com’s Banking Experts work hard to deliver good study material to the candidates. The candidates will get assistance through jagranjosh.com in preparing for IBPS PO exams. Check the below link for the study material on other topics and tips for cracking the exam easily.

    IBPS PO Exam Reasoning

    Tips and Strategy for IBPS PO Exam

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