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If 'TABLE' is coded as 'UCBMF', how is 'CHAIR' coded?
DIBJS
DIBSJ
IDBJS
DJBIS
DIBJS
Observe that each letter in TABLE is simply shifted forward by 1 position in the alphabet (n+1) to get the corresponding letter in UCBMF.
Observe that each letter in TABLE is simply shifted forward by 1 position in the alphabet (n+1) to get the corresponding letter in UCBMF.
Analyze the pattern
Compare TABLE to UCBMF: T+1=U, A+1=B, B+1=C, L+1=M, E+1=F. The pattern is +1 for every letter.
Apply pattern to CHAIR
Apply +1 shift to each letter of CHAIR: C+1=D, H+1=I, A+1=B, I+1=J, R+1=S. Result is DIBJS.
B: DIBSJ is incorrect because the last two letters are swapped. C: IDBJS is incorrect because the first two letters are swapped. D: DJBIS is incorrect because the middle letters are rearranged incorrectly.
A is correct because the coding logic involves shifting every letter of the word forward by exactly one position in the alphabet (n+1), which results in DIBJS for CHAIR.
For coding-decoding questions, always check the +1/-1 pattern first; if it fails, check for vowel/consonant logic or positional reversal.