Coding-Decoding – Logical Reasoning – MBA CUET PG – Notes & Practice Questions

A code is a type of signal. Coding is a method of transmitting a message between the sender and the receiver without a third person knowing it. Before transmitting the data is encoded and at receiver side encoded data is decoded in order to obtain original data by determining common key in encoded data.

Approach to solve the questions of this section

• Observe alphabets or numbers given in the code keenly.
• Find the sequence it follows whether it is ascending or descending.
• Detect the rule in which the alphabets/numbers/words follow.
• Fill the appropriate letter/number/word in the blank given.

Types of Coding and Decoding

1. Letter coding
2. Number coding
3. Substitution
4. Mixed letter coding
5. Mixed Number coding

Practice Questions

1. If the animals which can walk are called ‘swimmers’, animals who crawl are called ‘flying’, those living in water are called ‘snakes’ and those which fly in the sky are called ‘hunters’, then what will a lizard be called? (CUET PG 2024)

(a) Swimmers

(b) Snakes

(c) Flying

(d) Hunters

2. If in a code language SISTER is coded as 636301, UNCLE as 84570 and OK as 29, how will SON be coded in that code language? (CUET PG 2024)

(a) 624

(b) 625

(c) 564

(d) 629

3. In a certain code, POETRY is written as QONDSOX and OVER is written as PNUDO. How is MORE written in that code?

(a) LNNQD

(b) NNNQD

(c) NLNQD

(d) NLPQD

4. In a certain code, GERMINATION is written as IMGRENNOAIT. How is ESTABLISHED written in that code?

(a) BEATSLEIHS

(c) BATESLDEIHS

(b) BAETSLEDIHS

(d) BAETSLDEIHS

5. In a certain code language, COMPUTER is written as RFUVQNPC. How is MEDICINE written in that code?

(a) EOJDEJFM

(b) EOJDJEFM

(c) MFEDJJOE

(d) MFEJDJOE