Coding and Decoding Questions and Answers – Set 7

This set of Logical Reasoning Questions and Answers (MCQs) focuses on “Coding and Decoding – Set 7”.

1. In a certain code “CONTROL” is written as “DQQXWUS”. How is “BREAK” written in that code?
a) SRLFE
b) JDKAL
c) CTHEP
d) UDQKA

Explanation: Here, every letter of the word moves +n from its position where n is position of alphabet in the word.
i.e. for CONTROL, C+1→D, O+2→Q, N+3→Q, T+4→X, R+5→W, O+6→U, L→S.
Similarly, for BREAK, B+1→C, R+2→T, E+3→H, A+4→E, K+5→P.

2. In a certain code “INSERT” is written as “GLQCPR”. How is “CREATE” written in that code?
a) BWKXUA
b) APCYRC
c) SHXHLH
d) GWPNCV

Explanation: Here, each letter moves -2 from its original position.
i.e. for “INSERT” the code is GLQCPR.
Similarly, for “CREATE” the code is APCYRC.

3. In a certain code “CLOUD” is written as “ENQWF”. How “CRACK” is written in that code?
a) ETCEM
b) SPUPSR
c) NJELVP
d) ESAPTO

Explanation: Here, each letter moves +2 from its original position.
i.e. for “CLOUD” C→E, L→N, O→Q, U→W, D→F.
Similarly, for “CRACK” the code is ETCEM.

4. In a certain code “564” means “all the best”, “736” means “best of luck” and “423” means “all is luck”. Which of the following is the code for “best”?
a) 6
b) 4
c) 5
d) 7

Explanation: Here, in the first and second statement, the common code number is ‘6’ and common word is ‘best’. In the second and third statement the common code number is ‘3’ and common word is ‘luck’. In first and third statement, the common code number is ‘4’ and common word is ‘all’.
Therefore, 3→luck, 4→all, 6→best.
This gives, 2→is, 5→the, 7→of.

5. In a certain code “LITHIUM” is written as “lIthIUM”. How is “BRONZE” written in that code?
a) brOnzE
b) BrOnZe
c) bROnzE
d) BRonzE

Explanation: Here, according to the positions of the alphabets, odd position alphabets are written in capital letters whereas, even position alphabets are written in small letters.

6. If the letters of the word “ZEBRONICS” are arranged alphabetically, then which letter would be 2nd in the right from the first letter of word?
a) Z
b) E
c) R
d) C

Explanation: Here, when arranged alphabetically the word is BCEINORSZ.

7. In a certain code “AMPLIFIER” is written as “APMILIFRE”. How can “COMPILER” be written in that code?
a) CMOIPELR
b) COPMELIR
c) CPMOIREL
d) CRELIPMO

Explanation: Here, after first letter of the word the remaining letters are swapped with its adjacent letter.
Therefore for COMPILER the code is CMOIPELR.

8. In a certain code “PAWN” is written as “27”. Then how can “QUEEN” be written in that code?
a) 24
b) 31
c) 27
d) 46

Explanation: Here, the positional values of alphabets are added and then divided by 2.
i.e. P→16 + A→1 + W→23 + N→14 = 54÷2 = 27.
Similarly, for QUEEN→ 17+21+5+5+14 = 62÷2 = 31

9. In a certain code “M4TR1X” is written as “P7WU4A”. How is “ARR4Y” written in that code?
a) F1D8R
b) X8KVS
c) DUU7B
d) E4R4NY

Explanation: Here, each alphabet and number moves +3 from its original position.
i.e. M→P, 4→7, T→W, R→U, 1→4, X→A.
Similarly, for ARR4Y the code is DUU7B.

10. If ‘white’ is called ‘yellow’, ‘yellow’ is called ‘blue’, ‘blue’ is called ‘red’, ‘red’ is called ‘black’, ‘black’ is called ‘violet’ and ‘violet’ is called ‘green’, then what would be the colour of light emitting from bulb?
a) Red
b) Blue
c) Black
d) Yellow

Explanation: Here, the colour of light emitting from bulb is yellow and it is given that ‘yellow’ is called ‘blue’.