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Coding-Decoding - Intermediate Level: shift coding INTERMEDIATE

Exam-focused quick response training ★ worksheet: 20 intermediate-level coding-decoding questions. Worksheet 13 of 30 targets shift coding. Build proficiency in cipher solving, encoding rules, decoding techniques with detailed solutions. Ideal for mid-level competitive exam preparation.

📝 Worksheet 13 of 30 • 20 questions • ⏱️ Estimated time: 20 minutes • 🎯 Intermediate level

What you'll learn in this worksheet:
Your progress through Coding-Decoding
Worksheet 13 of 30 (43% complete)

Question 1

If the code for 'PROGRAMMING' is 'KILTIZNNRMT' using the rule 'each letter replaced by its opposite (A↔Z, B↔Y)', then what is the original word for the code 'KILTIZNNRMT'?
To decode, apply opposite again: KILTIZNNRMT → PROGRAMMING
decode, reverse

Question 2

If 'MOON' is coded as 'RTTS', then how is 'BUS' coded?
The pattern is shifting each letter by +5. So BUS becomes: B(2→7) → U(21→26) → S(19→24) = GZX
shift, basic

Question 3

If 'SUN' = 54 and 'LIP' = 37, then 'DOG' = ?
Sum of letter positions: SUN = 19+21+14 = 54, LIP = 12+9+16 = 37, DOG = 4+15+7 = 26
position, sum

Question 4

If 'MOON' is coded as 'RTTS', then how is 'KEY' coded?
The pattern is shifting each letter by +5. So KEY becomes: K(11→16) → E(5→10) → Y(25→4) = PJD
shift, basic

Question 5

If in a code, A↔Z, B↔Y, C↔X, etc. (each letter replaced by its opposite), then 'FIRE' becomes 'URIV'. How is 'SECRET' coded?
Opposite of SECRET: SECRET → HVXIVG
opposite, mirror

Question 6

If A=1, B=2, C=3... Z=26, then 'EXAM' is coded as?
Converting each letter to its position number: E=5, X=24, A=1, M=13 → 524113
numbers, substitution

Question 7

If in a code, A↔Z, B↔Y, C↔X, etc. (each letter replaced by its opposite), then 'BAG' becomes 'YZT'. How is 'WEB' coded?
Opposite of WEB: WEB → DVY
opposite, mirror

Question 8

If 'BAT' is coded as 'GFY', then how is 'DOG' coded?
The pattern is shifting each letter by +5. So DOG becomes: D(4→9) → O(15→20) → G(7→12) = ITL
shift, basic

Question 9

If in a code, A↔Z, B↔Y, C↔X, etc. (each letter replaced by its opposite), then 'DECODE' becomes 'WVXLWV'. How is 'FOLDER' coded?
Opposite of FOLDER: FOLDER → ULOWVI
opposite, mirror

Question 10

In a certain code, vowels are coded as A=1,E=2,I=3,O=4,U=5. How is 'JAVASCRIPT' coded?
Vowels: AAI become numbers: J1V1SCR3PT
conditional, vowels

Question 11

If 'PEN' is coded as 'NEP', then how is 'FLOOR' coded?
The pattern is reverse coding: PEN → NEP, so FLOOR → ROOLF
reverse, pattern

Question 12

In a certain code, vowels are coded as A=1,E=2,I=3,O=4,U=5. How is 'ENCODE' coded?
Vowels: EOE become numbers: 2NC4D2
conditional, vowels

Question 13

If A=1, B=2, C=3... Z=26, then 'BRAIN' is coded as?
Converting each letter to its position number: B=2, R=18, A=1, I=9, N=14 → 2181914
numbers, substitution

Question 14

If 'RAT' = 39 and 'CAR' = 22, then 'FAN' = ?
Sum of letter positions: RAT = 18+1+20 = 39, CAR = 3+1+18 = 22, FAN = 6+1+14 = 21
position, sum

Question 15

If 'ROOT' is coded as 'OLLQ' using the rule 'subtract 3 from each letter's position' (A=1, B=2, ..., Z=26, wrap around), then how is 'ANALOG' coded?
Each letter position -3: ROOT → OLLQ
arithmetic, operations

Question 16

If in a code, A↔Z, B↔Y, C↔X, etc. (each letter replaced by its opposite), then 'DOG' becomes 'WLT'. How is 'WIND' coded?
Opposite of WIND: WIND → DRMW
opposite, mirror

Question 17

If 'STORAGE' is coded as '85' using the rule 'sum of the positions of all letters', then how is 'DECODE' coded?
Sum of positions: STORAGE → 85
arithmetic, operations

Question 18

If the code for 'CAR' is 'XZI' using the rule 'each letter replaced by its opposite (A↔Z, B↔Y)', then what is the original word for the code 'XZI'?
To decode, apply opposite again: XZI → CAR
decode, reverse

Question 19

If the code for 'LID' is 'ORW' using the rule 'each letter replaced by its opposite (A↔Z, B↔Y)', then what is the original word for the code 'ORW'?
To decode, apply opposite again: ORW → LID
decode, reverse

Question 20

If 'PAGE' is coded as '29' using the rule 'sum of the positions of all letters', then how is 'LIP' coded?
Sum of positions: PAGE → 29
arithmetic, operations
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