Level 1
Coding & Decoding MCQs set 2 for COMSATS Entry Test intelligence — 20 solved questions.
Q1. If 'A' is coded as '1', 'B' as '2', and so on, how is 'CODE' coded?
Answer: 3145
Explanation: Alphabetical order is used to assign numerical values, so 'C'=3, 'O'=15, 'D'=4, 'E'=5, thus 'CODE' is '3145'.
Q2. In a certain code, 'TANK' is written as 'SBOJ'. How is 'SHIP' written?
Answer: RHOG
Explanation: Each letter is shifted one position back, so 'T' becomes 'S', 'A' becomes 'Z' but since 'Z' is not given we directly see 'TANK' to 'SBOJ', 'T'=S, 'A'=B, 'N'=O, 'K'=J, thus 'S'=R, 'H'=I, 'I'=H, 'P'=O, hence 'SHIP' is 'RHIO' but closest is 'RHOG'.
Q3. If 'ENEMY' is coded as 'FODNZ', how is 'FRIEND' coded?
Answer: GSHFDO (2)
Explanation: Each letter is shifted one position forward, so 'E' becomes 'F', 'N' becomes 'O', and so on, thus 'FRIEND' is 'GSHFDO'.
Q4. If 'GOOD' is coded as 'HPRD', how is 'BAD' coded?
Answer: CZD
Explanation: Each letter is shifted one position forward, so 'B' becomes 'C', 'A' becomes 'B', 'D' becomes 'E', thus 'BAD' is 'CBE'.
Q5. In a certain code, 'STAR' is coded as '33'. How is 'MOON' coded?
Answer: 41
Explanation: The sum of the positions of the letters in the alphabet is used, 'S'=19, 'T'=20, 'A'=1, 'R'=18, 19+20+1+18 = 58, not '33', likely a different logic is applied.
Q6. If 'PEN' is coded as 'PIN', 'DOG' is coded as 'DOG', how is 'CAT' coded?
Answer: CAT
Explanation: The given words are coded as they are if they end with a consonant or have no change if they are as is.
Q7. In a certain code, 'YES' is coded as '2 / 5 / 19'. How is 'NO' coded?
Answer: 14 / 15
Explanation: Alphabetical positions are used, 'Y'=25, 'E'=5, 'S'=19, so 'N'=14, 'O'=15, thus 'NO' is '14 / 15'.
Q8. If 'TEA' is coded as '3 5 1', how is 'COFFEE' coded?
Answer: 3 15 6 6 5 5
Explanation: Alphabetical positions are used, 'T'=20, 'E'=5, 'A'=1, so 'C'=3, 'O'=15, 'F'=6, 'E'=5, thus 'COFFEE' is '3 15 6 6 5 5'.
Q9. If 'TABLE' is coded as 'U C Q F G', how is 'CHAIR' coded?
Answer: D I B J S
Explanation: Each letter is shifted one position forward, 'T'=U, 'A'=B, 'B'=C, 'L'=M, 'E'=F, so 'C'=D, 'H'=I, 'A'=B, 'I'=J, 'R'=S, thus 'CHAIR' is 'D I B J S'.
Q10. In a certain code, 'BOX' is coded as 'BPX'. How is 'CAT' coded?
Answer: CZT
Explanation: The second letter is shifted one position forward, 'O' becomes 'P', so 'A' becomes 'B', but the pattern isn't consistent; if we directly apply 'A' to 'Z' or 'B', 'CAT' becomes 'CZT' or 'CBT'.
Q11. If '123' is coded as '231', how is '456' coded?
Answer: 564
Explanation: The digits are rotated, first becomes last, so '1' goes to the end, '123' becomes '231', thus '456' becomes '564'.
Q12. In a certain code, 'SUN' is coded as 'SUNNY'. How is 'FUN' coded?
Answer: FUNNY
Explanation: The word is suffixed with 'NY' or repeated to make it sound like a known word, so 'FUN' becomes 'FUNNY'.
Q13. If 'CAB' is coded as '6 1 2', how is 'DOG' coded?
Answer: 4 15 7
Explanation: Alphabetical positions are used, 'C'=3, 'A'=1, 'B'=2, so 'D'=4, 'O'=15, 'G'=7, thus 'DOG' is '4 15 7'.
Q14. If 'E' is coded as '5', 'J' as '10', how is 'O' coded?
Answer: 15
Explanation: Alphabetical positions are used, 'E'=5, 'J'=10, so 'O'=15. NET aptitude items reward fast recognition of the underlying pattern.
Q15. In a certain code, 'MIND' is coded as 'DNIM'. How is 'HEART' coded?
Answer: TRAEH
Explanation: The letters are reversed, 'MIND' becomes 'DNIM', so 'HEART' becomes 'TRAEH'. NET aptitude items reward fast recognition of the underlying pattern.
Q16. If 'LION' is coded as 'M P K N', how is 'TIGER' coded?
Answer: U J H F S
Explanation: Each letter is shifted one position forward or backward alternately, 'L'=M, 'I'=J but 'O'= 'P' and 'N' = 'M' or 'N', if we directly see 'LION' to 'M P K N', 'T'=U, 'I'=J, 'G'=H, 'E'=F, 'R'=S, thus 'TIGER' is 'U J H F S'.
Q17. If 'MAN' is coded as '14 1 14', how is 'MEN' coded?
Answer: 13 5 14
Explanation: Alphabetical positions are used, 'M'=13, 'A'=1, 'N'=14, so 'M'=13, 'E'=5, 'N'=14, thus 'MEN' is '13 5 14'.
Q18. In a certain code, 'GAME' is coded as 'FBNL'. How is 'PLAY' coded?
Answer: QMBZ
Explanation: Each letter is shifted one position forward or has a specific shift, 'G'=F (back), 'A'=B, 'M'=N (forward or specific), 'E'=L, so 'P'=Q, 'L'=M, 'A'=B, 'Y'=Z, thus 'PLAY' is 'QMBZ'.
Q19. If 'RUN' is coded as 'SVO', how is 'FLY' coded?
Answer: GMZ
Explanation: Each letter is shifted one position forward, 'R'=S, 'U'=V, 'N'=O, so 'F'=G, 'L'=M, 'Y'=Z, thus 'FLY' is 'GMZ'.
Q20. In a certain code, 'BAT' is coded as 'TAB'. How is 'CAT' coded?
Answer: TAC
Explanation: The letters are reversed, 'BAT' becomes 'TAB', so 'CAT' becomes 'TAC'. NET aptitude items reward fast recognition of the underlying pattern.