CODING DECODING PART 2

Letter Coding

A code is a ‘system of signals’. Therefore, Coding is a method of transmitting a message between the sender and the receiver without a third person knowing it. In these questions, the real alphabets in a word are replaced by certain other alphabets according to a specific rule to form its code. The candidate is required to detect the common rule and answer the questions accordingly.

In the following section, we will focus on the concept and method of obtaining words , letters from words.

Example 1: If in a certain language MYSTIFY is coded as NZTUJGZ, how is NEMESIS coded in that language?

(a) M D L H R D R           (b) O F N F T J T             (c) O D N H T D R              (d) P G O K U G U

Solution: Clearly, each letter in the word MYSTIFY is moved one step forward to obtain
the corresponding letter of the Code

M – Y S T I F Y

N – Z T U J G Z

So, in N E M E S I S, N will be coded as O, E as F, M as N and so on. Thus, the code becomes O F N F T J T. Hence, the answer is (b) O F N F T J T.

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DIGIT (OR)NUMBER  CODING :

A code is a ‘system of signals’ that can be understood by a specific intended audience only. Therefore, coding is a method of transmitting a message between the sender and the receiver without a third person knowing it. The Coding and Decoding Test are set up to judge the candidate’s ability to decipher the rule that codes a particular word/message and break the code to decipher the message. Let us see some solved examples of this type.

Q1: In a certain code language 24685 is written as 33776. How is 35791 written in that code? (Bank P. O. Exam, 1989)

a) 44826              b) 44880               c) 46682              d) 44682              e) None of these

Answer: The key to solving the number based coding question is to be mindful of not only the value of the numbers but also the place value. For example, in this question, the letters at odd places are one place ahead and those at even places are one place before the corresponding letter in the word.

So, in 35791, 3 is written as 4. Similarly, 5 will be written as 4 and 7 as 8. Also, 9 will be written as 8 and 1 as 0. Thus, we see that the number becomes 44880 and the correct option here is b.

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SYMBOL CODING :

In this type of questions, you have to give the answers according to given symbol coding. To understand these symbol coding decoding questions, you can practice with these important symbol questions for competitive exams which are below:

After reading symbol coding questions, you can practice with answers for your better performance.

Q.1. In a certain code, RAID is written as %#*$, RIPE is written as % * @ ©. How is DEAR written up in that code?

(A) $ * 37

(B) 3$7*

(C) $73*

(D) $37*

Solution

Letters                 R A I D R  I   P  E

Symbol code      % # * $ % * @ ©

D=$

E=©

A=#

R=%

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