COMSATS Entry Test intelligence Coding & Decoding — Set 3

Coding & Decoding MCQs set 3 for COMSATS Entry Test intelligence — 20 solved questions.

COMSATS Entry Test intelligence Coding & Decoding — Set 3

  1. Question 1

    Q1. In a certain code, 'TABLE' is written as 'EGKLY'. How is 'CHAIR' coded?

    • A) LBFYH
    • B) LYFCH
    • C) HCKYL
    • D) YLFCH

    Answer: LBFYH

    Explanation: Shift each letter by a fixed number of positions: T(20)+6=E(5), A(1)+6=G(7), B(2)+6=L(12), L(12)+6=Y(25), E(5)+6=K(11). Apply same logic.

  2. Question 2

    Q2. If 'COMPUTER' is coded as 'CPUTERMO', how is 'TELEPHONE' coded?

    • A) TELPHOEEN
    • B) TLEPHOENE
    • C) TELPHOENP
    • D) TELPHOENE

    Answer: TELPHOENE

    Explanation: Remove the first letter, then append it to the end, and rearrange: C-O-M-P-U-T-E-R -> C-P-U-T-E-R-M-O. Apply similar logic.

  3. Question 3

    Q3. In a code, '7' represents 'A', '3' represents 'B'. If '731' represents 'ABC', what does '371' represent?

    • A) CBA
    • B) BAC
    • C) BCA
    • D) CAB

    Answer: BAC

    Explanation: Direct substitution: 7=A, 3=B, 1=C. So, 371 = B-A-C. NET aptitude items reward fast recognition of the underlying pattern.

  4. Question 4

    Q4. A word is coded as 'YELLOWS' if 'Y' is the last letter of the alphabet and 'S' is the last letter of the word. How is 'PURPLE' coded?

    • A) ELPRUP
    • B) PURPLEE
    • C) ELPURP
    • D) PURP

    Answer: ELPURP

    Explanation: Reversing the word and appending the last letter: PURPLE -> ELPRUP, last letter 'E' is appended.

  5. Question 5

    Q5. If 'FOX' is coded as '14 15 24', how is 'CAT' coded?

    • A) 3 1 20
    • B) 24 1 20
    • C) 3 1 21
    • D) 24 1 21

    Answer: 3 1 20

    Explanation: Position of the letters in the alphabet: F=6, O=15, X=24. C=3, A=1, T=20.

  6. Question 6

    Q6. In a certain code, 'HELLO' is written as 'KHOOR'. What is the code for 'WORLD'?

    • A) ZRUOG
    • B) ZRUQD
    • C) ZORUD
    • D) ZRUOG (2)

    Answer: ZRUOG

    Explanation: Shifting each letter 3 positions forward: H+3=K, E+3=H, L+3=O, L+3=O, O+3=R. Apply the same logic.

  7. Question 7

    Q7. A certain code language codes 'SUN' as '54'. How will 'MOON' be coded?

    • A) 50
    • B) 48
    • C) 52
    • D) 49

    Answer: 49

    Explanation: Sum of the positions: S(19)+U(21)+N(14)=54. M(13)+O(15)+O(15)+N(14)=57, but check the pattern: it could be the sum of the positions of the letters modulo some number or a different logic.

  8. Question 8

    Q8. In a code, '123' represents 'CAT'. What does '456' represent?

    • A) DOG
    • B) HOG
    • C) FOG
    • D) GOD

    Answer: FOG

    Explanation: Assuming a pattern or substitution: 1=C, 2=A, 3=T. 4=F, 5=O, 6=G. NET aptitude items reward fast recognition of the underlying pattern.

  9. Question 9

    Q9. If 'RAIN' is coded as 'SBOJ', how is 'CLOUD' coded?

    • A) DMPVE
    • B) DNPVY
    • C) DMPUF
    • D) DMPVF

    Answer: DMPVF

    Explanation: Shifting each letter one position forward: R+1=S, A+1=B, I+1=J, N+1=O. Apply the same logic.

  10. Question 10

    Q10. A code represents 'FLOWER' as 'REWOLF'. What is the code for 'GRASS'?

    • A) SSARG
    • B) SSARH
    • C) SSARG (2)
    • D) SARHS

    Answer: SSARG (2)

    Explanation: Reversing the word: FLOWER -> REWOLF. GRASS -> SSARG. NET aptitude items reward fast recognition of the underlying pattern.

  11. Question 11

    Q11. If 'java' is coded as 'kbwb', how is 'python' is coded?

    • A) qzuipo
    • B) qziupo
    • C) qzuipn
    • D) qzupio

    Answer: qzuipo

    Explanation: Shifting each letter one position forward: j+1=k, a+1=b, v+1=w, a+1=b. Apply the same logic.

  12. Question 12

    Q12. In a certain code, 'SIGN' is coded as 'THJO'. How is 'RUST' coded?

    • A) SHTU
    • B) SHTV
    • C) SVTU
    • D) SUTV

    Answer: SHTV

    Explanation: Shifting each letter one position forward: S+1=T, I+1=J, G+1=H, N+1=O. Apply the same logic.

  13. Question 13

    Q13. If 'GOOD' is coded as 'HPTT', how is 'BAD' coded?

    • A) CBE
    • B) CED
    • C) CBD
    • D) CBE (2)

    Answer: CBE

    Explanation: Shifting each letter one position forward: G+1=H, O+1=P, O+1=P, D+1=T (but D is shifted to E or T as per pattern, here to T). Apply the same logic.

  14. Question 14

    Q14. In a certain code, '1234' represents 'DATE'. What is '5678'?

    • A) HEST
    • B) HEAT
    • C) HGFE
    • D) HGFH

    Answer: HEAT

    Explanation: Assuming a pattern or substitution: 1=D, 2=A, 3=T, 4=E. 5=H, 6=E, 7=A, 8=T.

  15. Question 15

    Q15. If 'CLOCK' is coded as 'DPMDL', how is 'TIME' coded?

    • A) UJNJ
    • B) UJNJ (2)
    • C) UJOF
    • D) UJNE

    Answer: UJNE

    Explanation: Shifting each letter one position forward and adjusting: C+1=D, L+1=M, O-1=N, C+1=D, K+1=L. Apply the same logic.

  16. Question 16

    Q16. In a code, 'BLACK' is written as 'DNCEM'. How is 'WHITE' coded?

    • A) YLJVG
    • B) YLVJG
    • C) YLJVG (2)
    • D) YJLVG

    Answer: YLJVG

    Explanation: Shifting each letter 2 positions forward: B+2=D, L+2=N, A+2=C, C+2=E, K+2=M. Apply the same logic.

  17. Question 17

    Q17. A certain code represents 'GAME' as 'HDFN'. What is the code for 'SPORT'?

    • A) TQPSU
    • B) TQPUV
    • C) TQPUS
    • D) TQQSU

    Answer: TQPUS

    Explanation: Shifting each letter one position forward: G+1=H, A+1=B, M+1=N, E+1=F. Apply the same logic.

  18. Question 18

    Q18. If 'LIST' is coded as 'MJTU', how is 'FIND' coded?

    • A) GJOE
    • B) GJOF
    • C) GJOE (2)
    • D) GJOE (3)

    Answer: GJOE (2)

    Explanation: Shifting each letter one position forward: L+1=M, I+1=J, S+1=T, T+1=U. Apply the same logic.

  19. Question 19

    Q19. In a certain code, 'CODE' is written as 'DPFE'. What is 'WORD' coded as?

    • A) XQSF
    • B) XPSF
    • C) XPEF
    • D) XPSE

    Answer: XPSE

    Explanation: Shifting each letter one position forward: C+1=D, O+1=P, D+1=E, E+1=F. Apply the same logic.

  20. Question 20

    Q20. If 'CARD' is coded as 'EDTG', how is 'STAR' coded?

    • A) WUEV
    • B) VUEV
    • C) WUDV
    • D) WUUD

    Answer: WUEV

    Explanation: Shifting each letter 2 positions forward: C+2=E, A+2=C (but here it is +2, so it is 'E'), R+2=T, D+2=F (but 'G' is given, +3 shift for 'D'). Apply similar logic.

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In a certain code, 'TABLE' is written as 'EGKLY'. How is 'CHAIR' coded?