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Coding-Decoding - Beginner-Intermediate Level: reverse coding BEGINNER-INTERMEDIATE

Ready to master coding-decoding? This benchmark test features 20 beginner-intermediate-level challenges. Worksheet 12 of 30 sharpens your reverse coding skills. Master pattern decoding, cipher solving, encoding rules through guided practice. Perfect for developing test preparation.

📝 Worksheet 12 of 30 • 20 questions • ⏱️ Estimated time: 20 minutes • 🎯 Beginner-intermediate level

What you'll learn in this worksheet:
Your progress through Coding-Decoding
Worksheet 12 of 30 (40% complete)

Question 1

If 'ALPHA' is coded as 'BIQMB' using the rule 'shift each letter by +1, then reverse the word', what is the code?
Step 1: Shift +1 ALPHA → BMQIB, Step 2: Reverse → BIQMB
mixed, complex

Question 2

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

Question 3

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

Question 4

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

Question 5

In a certain code, each consonant is replaced by the previous letter (B→A, C→B, etc.). How is 'VALUE' coded?
Consonants shifted backward: VALUE → UAKUE
conditional, vowels

Question 6

If 'BAG' = 10 and 'BOX' = 41, then 'PEN' = ?
Sum of letter positions: BAG = 2+1+7 = 10, BOX = 2+15+24 = 41, PEN = 16+5+14 = 35
position, sum

Question 7

If A=1, B=2, C=3... Z=26, then 'LOGIC' is coded as?
Converting each letter to its position number: L=12, O=15, G=7, I=9, C=3 → 1215793
numbers, substitution

Question 8

If 'WATER' is coded as 'RETAW', then how is 'HOUSE' coded?
The pattern is reverse coding: WATER → RETAW, so HOUSE → ESUOH
reverse, pattern

Question 9

If 'WEB' is coded as 'TJD' using the rule 'multiply each letter's position by 2' (A=1, B=2, ..., Z=26, wrap around), then how is 'FLOWER' coded?
Each letter position ×2: WEB → TJD
arithmetic, operations

Question 10

If 'PEN' = 35 and 'SUN' = 54, then 'CAT' = ?
Sum of letter positions: PEN = 16+5+14 = 35, SUN = 19+21+14 = 54, CAT = 3+1+20 = 24
position, sum

Question 11

If 'PLANT' is coded as '63' using the rule 'sum of the positions of all letters', then how is 'JAVA' coded?
Sum of positions: PLANT → 63
arithmetic, operations

Question 12

If 'SCORE' is coded as 'VILXH' using the rule 'replace each letter with its opposite (A↔Z, B↔Y), then reverse', what is the code?
Step 1: Opposite SCORE → HXLIV, Step 2: Reverse → VILXH
mixed, complex

Question 13

If the code for 'REVIEW' is 'TGXKGY' using the rule 'each letter shifted forward by 2', then what is the original word for the code 'TGXKGY'?
To decode, shift each letter backward by 2: TGXKGY → REVIEW
decode, reverse

Question 14

If 'PEN' = 35 and 'CUP' = 40, then 'DOG' = ?
Sum of letter positions: PEN = 16+5+14 = 35, CUP = 3+21+16 = 40, DOG = 4+15+7 = 26
position, sum

Question 15

If 'JAVA' is coded as 'MDYD' using the rule 'shift each letter by +1, then shift again by +2', what is the code?
Step 1: Shift +1 JAVA → KBWB, Step 2: Shift +2 → MDYD
mixed, complex

Question 16

If 'CUBE' is coded as 'FPDJ' using the rule 'multiply each letter's position by 2' (A=1, B=2, ..., Z=26, wrap around), then how is 'ANALOG' coded?
Each letter position ×2: CUBE → FPDJ
arithmetic, operations

Question 17

If the code for 'PROCESSOR' is 'ROSSECORP' using the rule 'reverse the word', then what is the original word for the code 'ROSSECORP'?
To decode, reverse the word: ROSSECORP → PROCESSOR
decode, reverse

Question 18

If 'SMART' is coded as 'USBNT' using the rule 'reverse the word, then shift each letter by +1', what is the code?
Step 1: Reverse SMART → TRAMS, Step 2: Shift +1 → USBNT
mixed, complex

Question 19

If 'SUN' = 54 and 'HAT' = 29, then 'CAT' = ?
Sum of letter positions: SUN = 19+21+14 = 54, HAT = 8+1+20 = 29, CAT = 3+1+20 = 24
position, sum

Question 20

If 'WATER' is coded as 'RETAW', then how is 'WALL' coded?
The pattern is reverse coding: WATER → RETAW, so WALL → LLAW
reverse, pattern
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