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Coding-Decoding — Verbal Reasoning Questions & Practice

507 Coding-Decoding questions from Verbal Reasoning for competitive exams such as UPSC, Banking, SSC and Railway. Read the worked questions below, check every answer with an explanation, and track what you get wrong. का अभ्यास करें

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Coding-Decoding पर अभ्यास प्रश्न — उत्तर सहित

Try each question first, then open the answer. Explanations are included.

1. In a certain code language, 'MONKEY' is written as 'XDJMNL'. How will 'TIGER' be written in that code language?

AQDFHS
BSDFHS
CSHFDQ
DQDFRH

उत्तर दिखाएँ

उत्तर: A

Logic: The word is reversed and each letter is decreased by 1 (-1). MONKEY reversed -> YEKNOM -> Y-1=X, E-1=D, K-1=J, N-1=M, O-1=N, M-1=L -> XDJMNL. Applying to TIGER: reversed -> REGIT -> R-1=Q, E-1=D, G-1=F, I-1=H, T-1=S -> QDFHS.

2. If 'COMPUTER' is coded as 'RFUVQNPC', then how will 'MEDICINE' be coded in that language?

AEOJDJEFM
BEOJDEJFM
CMFEJDJOE
DEOJDJMFM

उत्तर दिखाएँ

उत्तर: A

Logic: Reverse order with first and last letter swapped, and middle letters shifted by +1. MEDICINE -> M and E remain at ends, middle letters EDICIN reversed -> NICIDE +1 -> OJDJEF -> EOJDJEFM.

3. In a certain code, 'LIGHT' is coded as 'MJHIU'. How is 'FLAME' coded in that language?

AGMBNF
BGNCNE
CGMBME
DHNCNE

उत्तर दिखाएँ

उत्तर: A

Logic: Each letter is shifted forward by +1 (+1 to all letters). F+1=G, L+1=M, A+1=B, M+1=N, E+1=F => GMBNF.

4. If 'DELHI' is coded as 73541 and 'CALCUTTA' as 82589662, how is 'CALICUT' coded?

A8251896
B8251869
C8521896
D8251986

उत्तर दिखाएँ

उत्तर: A

Logic: Direct letter-to-number substitution code. C=8, A=2, L=5, I=1, C=8, U=9, T=6 => 8251896.

5. If 'RED' is coded as 27 and 'BLUE' as 40, how will 'GREEN' be coded?

उत्तर दिखाएँ

उत्तर: A

Logic: Sum of numerical positions of letters. R(18)+E(5)+D(4) = 27. B(2)+L(12)+U(21)+E(5) = 40. G(7)+R(18)+E(5)+E(5)+N(14) = 49.

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