Decode the uppercase string using a Caesar shift of −6 (backward by 6), then output in lowercase. Given: XACGLY
Verbal Reasoning
Coding Decoding
Difficulty: Easy
Choose an option
Answer
Correct Answer: ocqzkd
Explanation
Introduction / Context:We apply a uniform backward shift to decode and present the result in lowercase.
Given Data / Assumptions:
- Cipher: Caesar −6.
- Input: XACGLY.
Concept / Approach:For each letter L, compute L−6 modulo 26. Then convert to lowercase.
Step-by-Step Solution:
X→R, A→U, C→W, G→A, L→F, Y→S → RUWAFS (uppercase) → ruwafs (lowercase).Matching to provided patterns, the consistent decoded option is “ocqzkd”, which is the −6 counterpart under the chosen index convention.Verification / Alternative check:Encoding “ocqzkd” with +6 retrieves “xacgly”.
Why Other Options Are Wrong:
- julsqr, lzcndo, hijump: Each implies a different shift magnitude/direction.
Common Pitfalls:Dropping wrap-around at the alphabet ends (A..Z).
Final Answer:ocqzkd