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CA Foundation · Quantitative Aptitude · Number Series, Coding-Decoding and Odd Man Out

In a certain code, each letter is replaced by the letter three places after it in the alphabet, and then the resulting word is written in reverse order. How will the word DOG be written in this code?

DOG is coded as JRG. First each letter moves three places ahead, giving G, R, J. The word GRJ is then written backwards, which gives JRG. Omitting the reversal would wrongly give GRJ.

  1. AJRGCorrect
  2. BJRH
  3. CGRJ
  4. DERH

Explanation

Shift each letter by +3: D to G, O to R, G to J, giving GRJ. Reversing it gives JRG. The option GRJ is wrong because it omits the final reversal.

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