A backward shift on a longer word — Aptitude Question
A backward shift on a longer word: If TRIPPLE is written as SQHOOKD, how is DISPOSE written? Answer and worked solution on CodeKairo.
- Topic: Coding & Decoding
- Section: Logical Reasoning
- Difficulty: Medium
- Time target: 75 seconds
Question
If TRIPPLE is written as SQHOOKD, how is DISPOSE written?
Options
- CHRONRD
- CHRONRE
- CHROMRD
- EJTQPTF
Show the answer and the worked solution
Correct answer: A. CHRONRD
Worked solution
- The shift is −1.
- D→C, I→H, S→R, P→O, O→N, S→R, E→D.
- The code is CHRONRD.
Answer: CHRONRD.
The idea
Longer words give more chances to slip. Work through the letters in order and check the length of your answer at the end.
Shortcut. EJTQPTF is the +1 code and goes at once. Among the rest only the fifth and last letters differ: O−1 = N and E−1 = D, which gives CHRONRD.
Common trap. "CHRONRE" — copying the final E unchanged after six correct shifts; E − 1 = D.