Question

In a code language, if LBAEHC is the code for BLEACH, then which of the following is coded as NBOLZKMH?

• A. LOBNHMKZ
• B. BNLOKZHM
• C. MANKYJLG
• D. OBNKZLHM

Hint:

Whenever a coding question shows letters changing position without changing alphabet values, first check for pairwise interchange, reversal, alternate swapping, or block-wise rearrangement.

Answer 1

The Correct Option is B

Concept: The coding pattern is obtained by interchanging every pair of adjacent letters. For example: \[ \text{BLEACH} \rightarrow (BL)(EA)(CH) \] After swapping each pair: \[ (BL)\rightarrow(LB), \quad (EA)\rightarrow(AE), \quad (CH)\rightarrow(HC) \] Hence, \[ \text{BLEACH} \rightarrow \text{LBAEHC} \]

Step 1: Apply the reverse operation to NBOLZKMH.
Group the coded word into adjacent pairs: \[ NB \quad OL \quad ZK \quad MH \] Swap the letters in each pair: \[ NB \rightarrow BN \] \[ OL \rightarrow LO \] \[ ZK \rightarrow KZ \] \[ MH \rightarrow HM \]

Step 2: Form the original word.
Combining the decoded pairs: \[ BN + LO + KZ + HM = \text{BNLOKZHM} \] \[ \boxed{\text{BNLOKZHM}} \]