Question 1

Unscramble with indexed letters: E→(i), R→(ii), D→(iii), I→(iv), S→(v), P→(vi). Form a meaningful word and give the correct index order.

Accepted Answer

Introduction / Context: We are given six letters and their indices. The task is to arrange them to form a meaningful English word and then report the sequence of indices that achieves it. This is a classic anagram-with-indices question. Given Data / Assumptions: Letters: E(i), R(ii), D(iii), I(iv), S(v), P(vi). We must discover a valid English word using each letter once. Typical candidates include “SPIDER”, “PRIDES”, etc. Concept / Approach: Check common six-letter permutations. “SPIDER” matches all letters exactly and is a common dictionary word. Map its letter order back to indices to obtain the sequence demanded by the problem. Step-by-Step Solution: Target word: SPIDER.Map letters to indices: S→(v), P→(vi), I→(iv), D→(iii), E→(i), R→(ii).Thus the order of indices is (v), (vi), (iv), (iii), (i), (ii). Verification / Alternative check: Confirm that each letter is used exactly once and that the constructed word is valid English. No duplicates or omissions occur. Why Other Options Are Wrong: Other index sequences correspond either to no valid English word or to scrambled nonsense (e.g., SIPDER, PRIDES requires repeating letters in a different placement). None of these: Incorrect because the listed order builds “SPIDER”. Common Pitfalls: Choosing a rarer word or misaligning indices to letters; forgetting to preserve the one-to-one correspondence. Final Answer: (v), (vi), (iv), (iii), (i), (ii)

Question 2

Decode using a provided code–key table: Code row: L X P Z J Y Q M N B …; Key row: b a e s p r h i g t. Decode “Z B Y X M N Q B”.

Accepted Answer

Introduction / Context: Here we are given a direct substitution table between a “code” alphabet (upper row) and a “key” alphabet (lower row). Each letter in the coded word maps to the corresponding letter directly beneath it. The task is to decode a sequence using this fixed table. Given Data / Assumptions: Code row: L X P Z J Y Q M N B … Key row: b a e s p r h i g t Coded word: Z B Y X M N Q B Mapping is one-to-one and position-based across the two rows. Concept / Approach: Write a quick map: L→b, X→a, P→e, Z→s, J→p, Y→r, Q→h, M→i, N→g, B→t. Then translate each letter of the coded word in order. Step-by-Step Solution: Z→s, B→t, Y→r, X→a, M→i, N→g, Q→h, B→t.Combined: s t r a i g h t → “straight”. Verification / Alternative check: Ensure each letter used in the coded word appears in the mapping; they do. The decoded output is a common English word and appears among the options. Why Other Options Are Wrong: strength / height / struggle: Different letter patterns that do not match the decoded sequence. None of these: Not applicable because “straight” is obtained directly by the table. Common Pitfalls: Accidentally reading the mapping upside down (key→code instead of code→key), or mismatching letters Z and B, which occur twice. Final Answer: straight

Question 3

Symbol cipher decoding: Given A→@, B→#, C→$, D→%, E→^, M→&, N→*, O→α, S→β, R→γ, U→δ, decode “# α @ γ %”.

Accepted Answer

Introduction / Context: This is a straightforward symbol-to-letter substitution. A partial alphabet is mapped to distinct symbols; the task is to translate a short symbol sequence into an English word using that map only. Given Data / Assumptions: Mappings: A→@, B→#, C→$, D→%, E→^, M→&, N→*, O→α, S→β, R→γ, U→δ. Sequence: # α @ γ %. Concept / Approach: Translate symbol-by-symbol using the provided map, ensuring that each symbol is present in the mapping and yields a letter that forms a sensible English word. Step-by-Step Solution: # → Bα → O@ → Aγ → R% → DThus “# α @ γ %” decodes to B O A R D → “BOARD”. Verification / Alternative check: Check for alternative words: the exact sequence maps uniquely to BOARD with the given table; no ambiguity remains. Why Other Options Are Wrong: BOUND / BONUS / BUNCH: Require symbols not present in the given sequence or different mappings (e.g., U→δ, N→*), which do not appear. None of these: Invalid because “BOARD” is a perfect decode. Common Pitfalls: Misreading α as A or @; ensure you distinguish between the Greek alpha (α) and the at symbol (@) since both occur in the mapping. Final Answer: BOARD

Question 4

Symbol cipher decoding (extended set): Given A→@, C→#, D→$, E→%, G→=, H→^, K→&, L→*, M→α, N→β, O→γ, S→δ, decode “^ γ α @ =%”.

Accepted Answer

Introduction / Context: This continues the symbol cipher style with a larger mapping set. The task is to decode a six-symbol string to a meaningful English word using the exact substitutions provided. Given Data / Assumptions: Mapping: A→@, C→#, D→$, E→%, G→=, H→^, K→&, L→*, M→α, N→β, O→γ, S→δ. Sequence: ^ γ α @ =%. Concept / Approach: Translate each symbol in order and check which option matches the resulting sequence exactly. Step-by-Step Solution: ^ → Hγ → Oα → M@ → A= → G% → ECombined: H O M A G E → “HOMAGE”. Verification / Alternative check: The decode matches exactly one of the options; others would require different symbol sequences (e.g., for N, S, K, etc.). Why Other Options Are Wrong: HONEST / HOCKEY / HOSTEL: The decoded letters form HOMAGE, not these words; symbols for N (β) or S (δ) do not appear. None of these: Incorrect because “HOMAGE” is achieved precisely. Common Pitfalls: Confusing α (alpha) with A (@) or mixing = (G) with % (E). Accuracy with symbol recognition is essential. Final Answer: HOMAGE

Question 5

Direct symbol mapping: Using A→!, B→@, C→#, D→$, E→%, F→^, G→&, H→*, I→+, O→=, P→α, R→β, S→γ, T→δ, U→∠, encode the word “FIGHT”.

Accepted Answer

Introduction / Context: We are to encode an English word using a fixed one-to-one symbol mapping for each letter. No positional tricks apply; it is a straight substitution per character. Given Data / Assumptions: Map: F→^, I→+, G→&, H→*, T→δ (among the full table provided). Target word: FIGHT. Concept / Approach: Encode each letter of FIGHT using the exact symbol assigned in the table, then preserve the order. Step-by-Step Solution: F → ^I → +G → &H → *T → δThus “FIGHT” encodes to “^ + & * δ”. Verification / Alternative check: Confirm each mapping exists and is unique. Cross-check alternatives that swap positions; they violate the one-to-one mapping for the ordered word. Why Other Options Are Wrong: Other sequences permute the middle symbols or move δ out of the terminal position, contradicting the letter order in “FIGHT”. None of these: Incorrect because a perfect match exists. Common Pitfalls: Confusing similar-looking symbols or mis-ordering the sequence when copying. Final Answer: ^ + & * δ

Question 6

Coding–decoding with symbol map (letters → symbols): A → !, B → @, C → #, D → $, E → %, F → ^, G → &, H → *, I → +, O → =, P → α, R → β, S → γ, T → δ, U → ∠. Using only this mapping, how is the word “DEAR” coded?

Accepted Answer

Introduction / Context: In this coding–decoding problem, each English alphabet letter is replaced by a unique symbol. The task is to apply the given one-to-one mapping to spell a target word entirely in symbols. Such questions test careful reading, accurate symbol substitution, and attention to order. Given Data / Assumptions: Mapping (letters → symbols): A → !, B → @, C → #, D → $, E → %, F → ^, G → &, H → *, I → +, O → =, P → α, R → β, S → γ, T → δ, U → ∠. Target word: DEAR. Assume the mapping is exact and case-insensitive (standard MCQ convention). Concept / Approach: Replace each letter of the target word with its corresponding symbol, preserving order. No arithmetic or rearrangement is involved; this is direct substitution. Step-by-Step Solution: Map D → $ (from the table).Map E → %.Map A → !.Map R → β.Combine in order: D E A R → $ % ! β. Verification / Alternative check: Re-check the mapping table to ensure each letter is correctly matched and that no symbol belongs to a different letter. The sequence order must match the original spelling “DEAR”. Why Other Options Are Wrong: $ % & !: “&” maps to G, not A or R; the final “!” is A, not R. β $ # !: Starts with β (R) instead of D; “#” is C, which is not in DEAR. @ # ! %: “@” is B, “#” is C; neither appears in DEAR. None of these: The correct coded form exists among options, so this is incorrect. Common Pitfalls: Mixing direction of mapping (reading symbols → letters) instead of letters → symbols; swapping order of letters; confusing visually similar symbols like “!” and “|”; overlooking R → β which is a Greek symbol rather than punctuation. Final Answer: $ % ! β

Question 7

Two symbol-to-letter decodings are given: 1) “@ # $ % &” decodes to “ARGUE”. 2) “α β γ δ &” decodes to “SOLVE”. Using these as keys, decode the symbol string: “δ @ $% &γ ∠”. What English word does it form?

Accepted Answer

Introduction / Context: This item provides two known decodings (symbol sequences mapped to English words). From those, we infer individual symbol→letter mappings, then apply them to decode a new symbol string. The skill tested is inferring a cipher key from exemplars and applying it consistently. Given Data / Assumptions: “@ # $ % &” → “A R G U E”. “α β γ δ &” → “S O L V E”. Query: decode “δ @ $% &γ ∠”. Assume single, consistent mapping; adjacency like “$%” means two symbols in sequence. Concept / Approach: Determine the per-symbol mapping from the two exemplars by aligning positions, then substitute for each symbol in the query. If any symbol appears only in the query (e.g., “∠”), infer the resulting word by dictionary sense-checking against options. Step-by-Step Solution: From “@ # $ % &” → “A R G U E”, we get: @→A, #→R, $→G, %→U, &→E.From “α β γ δ &” → “S O L V E”, we get: α→S, β→O, γ→L, δ→V, &→E (consistent with earlier).Now decode the query “δ @ $ % & γ ∠” (note “$%” means “$” then “%”):δ → V@ → A$ → G% → U& → Eγ → L∠ → (unknown yet)So far: V A G U E L _ .Among options, “VAGUELY” completes the pattern, which implies ∠ → Y. Verification / Alternative check: Cross-check consistency: the partial decoding “VAGUEL” matches a valid English prefix; only “VAGUELY” fits the exact sequence and is offered as an option. No contradictions with prior mappings. Why Other Options Are Wrong: VAGRANT: Would require R at the third position, but $ maps to G. VAGUELE: Nonstandard word; also final “E” would require “&”, not “∠”. VAGUER: Too short and mismatched ending relative to “γ ∠”. None of these: A correct, dictionary word consistent with the mapping exists (VAGUELY). Common Pitfalls: Reading groupings incorrectly (e.g., treating “$%” as one token); mixing earlier, unrelated symbol tables; overlooking that “γ” and “δ” are Greek letters, not Latin; ignoring dictionary validation to resolve a single unknown mapping. Final Answer: VAGUELY

Question 8

Digit-to-symbol substitution (numbers → symbols): 1 → !, 2 → @, 3 → #, 4 → $, 5 → %, 6 → ^, 7 → &, 8 → *, 9 → +. Using this mapping, how is the number 15384 written in code?

Accepted Answer

Introduction / Context: Here, each digit 1–9 has a unique symbol. The job is to encode a multi-digit number by simple position-wise substitution. This tests exact recall of the mapping and preservation of order without inserting or omitting symbols. Given Data / Assumptions: Mapping: 1→!, 2→@, 3→#, 4→$, 5→%, 6→^, 7→&, 8→*, 9→+. Target numeral: 15384. No spaces are required mathematically, but options display spaces for readability; we match their display style. Concept / Approach: Apply direct substitution left-to-right, digit by digit, strictly using the provided mapping. No arithmetic is performed. Step-by-Step Solution: 1 → !5 → %3 → #8 → *4 → $Hence 15384 → ! % # * $. Verification / Alternative check: Re-read the mapping to ensure each symbol corresponds to the intended digit and that the sequence order matches 1-5-3-8-4. Everything aligns exactly with option “! % # * $”. Why Other Options Are Wrong: ! $ # ^ &: Maps 5→% incorrectly as $, and 8→* incorrectly as ^; also ends with “&” which is 7, not 4. & $ # @ ^: Begins with 7 (“&”) not 1; contains 2 (“@”) and 6 (“^”) which are absent in 15384. * $ % ^ &: Starts with 8, not 1; includes 6 and 7 which are not in the target. None of these: The correct encoding is present, so this is invalid. Common Pitfalls: Copying symbols out of order, confusing similar-looking symbols, or attempting to compress consecutive symbols. Maintain a strict one-to-one, position-wise mapping. Final Answer: ! % # * $

Question 9

From the examples: “PENCIL” is coded as “? @ , = ; 7”, and “PAPER” is coded as “? 9 ? @ 5”. Using these consistent letter→symbol mappings, how will you code the word “CLIP”?

Accepted Answer

Introduction / Context: We are given two worked examples showing how specific words translate into sequences of symbols and digits. Our task is to infer the underlying per-letter mapping and then apply it to a new word. This problem assesses pattern extraction and consistent substitution across multiple exemplars. Given Data / Assumptions: “PENCIL” → “? @ , = ; 7”. “PAPER” → “? 9 ? @ 5”. Assume a one-to-one mapping (same letter always maps to the same symbol). We need the code for “CLIP”. Concept / Approach: Align letters with coded positions to deduce a mapping table. Then substitute for each letter of the target word in order. Consistency across both examples provides multiple confirmations for shared letters. Step-by-Step Solution: From “PAPER”: P A P E R → ? 9 ? @ 5, so P→?, A→9, E→@, R→5.From “PENCIL”: P E N C I L → ? @ , = ; 7, so P→? (confirms), E→@ (confirms), N→,, C→=, I→;, L→7.Now code “CLIP” (C L I P):C → =L → 7I → ;P → ?Thus “CLIP” → “= 7;?”. Verification / Alternative check: Every letter used in “CLIP” appears in the mapping derived above, and each mapping is confirmed by at least one of the two given examples. The order is preserved, satisfying the one-to-one rule. Why Other Options Are Wrong: @ 7;? and @?;?: Start with “@” which is E, but the first letter is C. = 7?;: Swaps the last two symbols, which would map to “CLIP” as “= 7 ? ;” corresponding to “CL P I”, breaking the correct order for I and P. None of these: A correct option exists. Common Pitfalls: Assuming different codes for repeated letters (violates consistency), reading punctuation as separators rather than actual symbols, and reversing letter order. Always align letters to positions and keep the mapping stable. Final Answer: = 7;?

Question 10

In a certain code language COMPUTER is written as RFUVQNPC. How will MEDICINE be written in that code language?

Accepted Answer

- There are 8 letters in the word. - The coded word can be obtained by taking the immediately following letters of word, expect the first and the last letters of the given word but in the reverse order. That means, in the coded form the first and the last letters have been interchanged while the remaining letters are coded by taking their immediate next letters in the reverse order.

Question 11

In a certain code language, '134' means 'good and tasty'; '478' means 'see good pictures' and '729' means 'pictures are faint'. Which of the following digits stands for 'see'?

Accepted Answer

Justification: In the first and second statements, the common code digit is '4' and the common word is 'good'. So, '4' stands for 'good'. In the second and third statements, the common code digit is '7' and the common word is 'pictures'. So, '7' means 'pictures'. Thus, in the second statements, '8' means 'see'.

Question 12

If Z = 52 and ACT = 48, then BAT will be equal to

Accepted Answer

In the given code, A = 2, B = 4, C = 6,.... , Z = 52. So, ACT = 2 + 6 + 40 = 48 and BAT = 4 + 2 + 40 = 46

Question 13

In a certain code language, (A) ‘pit na som’ means ‘bring me water’ (B) ‘na jo tod’ means ‘water is life’ (C) ‘tub od pit’ means 'give me toy’ (D) ‘jo lin kot’ means ‘life and death’ Which of the following represents 'is' in that language ?

Accepted Answer

Justification: In statements A and B, the common code word is 'na' and the common word is 'water'. So, 'na' means 'water'. In statements B and D, the common code word is 'jo' and the common word is 'life'. So, 'jo' means 'life'. Thus, in statements B, 'tod' represents 'is'.

Question 14

In a certain code, MONKEY is written as XDJMNL. How is TIGER written in that code ?

Accepted Answer

The letter of the word are written in a reverse order and then each letter is moved one step backward to obtain the code.

Question 15

If FRIEND is coded as HUMJTK, how is CANDLE written in that code ?

Accepted Answer

The first, second, third, fourth, fifth and sixth letters of th word are respectively moved two, three, four, five, six and seven steps forward to obtain the corresponding letters of the code.

Question 16

If Z= 2197 and R= 729. How would J be written in that code?

Accepted Answer

Z C o d e ⇒ 26 ⇒ 26 2 ⇒ 13 ⇔ 13 3 = 2197 R C o d e ⇒ 18 ⇒ 18 2 ⇒ 9 ⇔ 9 3 = 729 Similarly, J C o d e ⇒ 10 ⇒ 10 2 ⇒ 5 ⇔ 5 3 = 125

Question 17

If ROSE is coded as 6821, CHAIR is coded as 73456 and PREACH is coded as 961473, what will be the code for SEARCH ?

Accepted Answer

The alphabets are coded as shown : R O S   E C H A I P 6 8 2 1 7 3 4 5 9 So, in SEARCH, S ia coded as 2, E as 1, A as 4, R as 6, C as 7, H as 3. Thus, the code for SEARCH is 214673

Question 18

(A) '134' means 'you are well'; (B) '758' means 'they go home'; (C) '839' means 'we are home'; Which of the statements can be dispensed with while answering the above question?

Accepted Answer

Justification: We can find the code for 'home' from the second and third statements. For finding the code for 'they', we need the code for 'go' which cannot be determined from the given data. Clearly, statement A is not necessary.

Question 19

Acording to a military code, SYSTEM is SYSMET and NEARER is AENRER. What is the code for FRACTION ?

Accepted Answer

The letter is the first half and the letter half of the word are separately reversed to obtain the code.

Question 20

If green means red, red means yellow, yellow means blue, blue means orange and orange means green, what is the colour of clean sky ?

Accepted Answer

The colour of clean sky is 'blue' and as givne, 'yellow' means 'blue'. so, the colour of clear sky is 'yellow'.

Coding Decoding Questions