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In certain code, DEFENCE is written as CDEDMBD, how NEED can be written in that code ?

  • A.MDDC
  • B.MCDC
  • C.MCCD
  • D.MDCC

Answer: A

NEED is written as MDDC.

Compare DEFENCE with CDEDMBD letter by letter: D→C, E→D, F→E, E→D, N→M, C→B, E→D. Every letter is replaced by the one just before it in the alphabet.

Applying the same rule to NEED: N→M, E→D, E→D, D→C, giving MDDC. MCDC, MCCD and MDCC all contain the right letters in a scrambled order, so they fail the letter-by-letter check.

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