Q1): If NETWORK is coded as LQPVUDO and PROBLEM is coded as NDMAPQQ, then SYSTEM is coded as:
A) LFSTXT
B) LFTSXT
C) LFSTTX
D) LFSXTT
Answer: A) LFSTXT
Explanation: From NETWORK → LQPVUDO, notice the word length stays same but letters change and the final code looks like a reversed result.
Check NETWORK (N E T W O R K): shift letters alternately (+1, −1, +1, −1, …) to get O D U V P Q L, then reverse → LQPVUDO.
Apply the same to SYSTEM (S Y S T E M): S→T, Y→X, S→T, T→S, E→F, M→L gives T X T S F L. Reverse → LFSTXT.
Q2): If CODE is coded as ZNYX and DATA is coded as YBIB, then QUIZ is coded as:
A) LHTC
B) LHTD
C) KHTC
D) LITC
Answer: A) LHTC
Explanation: From CODE → ZNYX and DATA → YBIB, the pattern is: each letter becomes its opposite (A↔Z, B↔Y, …) and then shifts +2.
QUIZ: Q→(opposite J)→L, U→(opposite F)→H, I→(opposite R)→T, Z→(opposite A)→C.
So QUIZ → LHTC.
Q3): If LOGIC is coded as PMJHD and MATH is coded as BNIU, then MASTER is coded as:
A) BNUTSF
B) BNUTFS
C) BNVTSF
D) CNUTSF
Answer: A) BNUTSF
Explanation: Compare LOGIC → PMJHD and MATH → BNIU. The code forms by first swapping adjacent letters in pairs and then shifting each letter +1.
MASTER → swap pairs: (M,A)→AM, (S,T)→TS, (E,R)→RE ⇒ AMTSRE.
Now shift each letter +1: A→B, M→N, T→U, S→T, R→S, E→F ⇒ BNUTSF.
Q4): If MATH is coded as BNIU and SIGNAL is coded as JTOHMB, then the word coded as PMJHD is:
A) LOGIC
B) GOLIC
C) LOIGC
D) LOGCI
Answer: A) LOGIC
Explanation: From the examples, the rule is: swap adjacent letters, then shift +1.
To decode PMJHD, reverse the steps. First shift −1: P→O, M→L, J→I, H→G, D→C gives OLIGC.
Now swap adjacent letters back: (O,L)→LO, (I,G)→GI, last C stays ⇒ LOGIC.
Q5): If MIND is coded as 17-23 and BRAIN is coded as 16-27-1, then SMART is coded as:
A) 39-31-1
B) 39-32-1
C) 38-31-1
D) 39-31-2
Answer: A) 39-31-1
Explanation: Convert letters to positions (A=1, …, Z=26) and add first+last, second+second-last, and keep the middle if any.
SMART: S=19, M=13, A=1, R=18, T=20.
First+last = 19+20=39, second+second-last = 13+18=31, middle = 1.
So the code is 39-31-1.
Q6): If CODE is coded as 22-23-12-24 and DATA is coded as 26-7-26-23, then NET is coded as:
A) 7-22-13
B) 13-22-7
C) 7-23-13
D) 8-22-13
Answer: A) 7-22-13
Explanation: From CODE → 22-23-12-24, the code is made by converting each letter to (27 − position) and then reversing the number order.
NET: N=14 → 13, E=5 → 22, T=20 → 7. Reverse order ⇒ 7-22-13.
Q7): If LOGIC is coded as BOFUK and NATURE is coded as IQASEM, then MUSIC is coded as:
A) BORAL
B) BORLA
C) BQRAL
D) BOPAL
Answer: A) BORAL
Explanation: In LOGIC → BOFUK, vowels move to the next vowel (A→E→I→O→U→A), consonants move to the previous letter, and then the result is reversed.
MUSIC: M→L, U→A, S→R, I→O, C→B gives LAROB. Reverse ⇒ BORAL.
Q8): If “bright future ahead” is coded as “mo ti sa”, and “future is bright” is coded as “ti no mo”, then “future ahead” is coded as:
A) ti sa
B) sa ti
C) mo sa
D) no sa
Answer: A) ti sa
Explanation: The common word in both sentences is future, and the common code is ti, so future = ti.
From “bright future ahead” and “future is bright”, the common word bright matches the common code mo, so bright = mo.
In “bright future ahead”, the remaining code sa must be ahead.
Therefore, “future ahead” = ti sa.
Q9): In a certain coded calculation:
- 18 + 6 gives 3
- 8 × 3 gives 11
- 15 − 5 gives 75
Then 20 ÷ 5 + 6 − 2 × 3 gives:**
A) 7
B) 8
C) 9
D) 10
Answer: B) 8
Explanation: From 18 + 6 = 3, ‘+’ must mean ÷ (18 ÷ 6 = 3).
From 8 × 3 = 11, ‘×’ must mean + (8 + 3 = 11).
From 15 − 5 = 75, ‘−’ must mean × (15 × 5 = 75).
So ‘÷’ must mean the remaining operation −.
Now convert: 20 ÷ 5 + 6 − 2 × 3 becomes (20 − 5) ÷ 6 × 2 + 3.
20 − 5 = 15, 15 ÷ 6 = 2.5, 2.5 × 2 = 5, 5 + 3 = 8.
Q10): If TIME is coded as FJLS and COIN is coded as BHOP, then MARKET is coded as:
A) BDLLQU
B) BDLLUQ
C) BDLQLU
D) BDMLQU
Answer: A) BDLLQU
Explanation: From TIME → FJLS, first letters change by alternating shifts: 1st −1, 2nd +1, 3rd −1, 4th +1, then the letters are arranged in alphabetical order.
For MARKET: M→L, A→B, R→Q, K→L, E→D, T→U gives letters L, B, Q, L, D, U.
Alphabetical order ⇒ B D L L Q U = BDLLQU.
Q11): If SECURE is coded as FTSFVD and PRIVACY is coded as ZQDSBJW, then NETWORK is coded as:
A) LOSFPUX
B) LOSFPUX
C) LSOFPUX
D) LOSFUPX
Answer: A) LOSFPUX
Explanation: From SECURE → FTSFVD, letters are taken in the order: last, first, second-last, second, and so on, then each selected letter is shifted +1.
NETWORK order: K, N, R, E, O, T, W. Shift +1: K→L, N→O, R→S, E→F, O→P, T→U, W→X ⇒ LOSFPUX.
Q12): If SECURE is coded as FTSFVD and PRIVACY is coded as ZQDSBJW, then the word coded as LOSFPUX is:
A) NETWORK
B) NEWTORK
C) NETWROK
D) NTEWORK
Answer: A) NETWORK
Explanation: Reverse the process used in the examples. First shift each letter −1: L→K, O→N, S→R, F→E, P→O, U→T, X→W giving KNREOTW.
This sequence is formed as last, first, second-last, second, third-last, third, middle. Rebuilding from that order gives NETWORK.
Q13): If EXAM is coded as LCZD and NET is coded as VGM, then LOGIC is coded as:
A) EHIQK
B) EHIQJ
C) EHJQK
D) FHIQK
Answer: A) EHIQK
Explanation: Look at positions: in EXAM → LCZD and NET → VGM, letters in prime positions (2,3,5,…) shift +2, and non-prime positions shift −1, then the result is reversed.
LOGIC: L→K, O→Q, G→I, I→H, C→E gives KQIHE. Reverse ⇒ EHIQK.
Q14): If ACE is coded as 2-5-7 and BAD is coded as 3-2-5, then MATH is coded as:
A) 17-2-23-11
B) 17-3-23-11
C) 19-2-23-11
D) 17-2-22-11
Answer: A) 17-2-23-11
Explanation: Each letter is replaced by the smallest prime number strictly greater than its alphabet position.
M=13 → next prime 17, A=1 → next prime 2, T=20 → next prime 23, H=8 → next prime 11.
So code = 17-2-23-11.
Q15): If AUDIO is coded as VPIDJ and LOGIC is coded as QJLDH, then SYSTEM is coded as:
A) XDXYZR
B) XDXYRZ
C) XCXYZR
D) XDXXZR
Answer: A) XDXYZR
Explanation: From AUDIO → VPIDJ, vowels move −5 letters and consonants move +5 letters (with wrap around).
SYSTEM: S→X, Y→D, S→X, T→Y, E(vowel)→Z, M→R ⇒ XDXYZR.
Q16): If LOGIC is coded as MDPJH and SECURE is coded as TFFSDV, then MOBILE is coded as:
A) NFPMCJ
B) NFPMCJ
C) NFPMBJ
D) NFPNCJ
Answer: A) NFPMCJ
Explanation: From LOGIC → MDPJH, letters are picked alternately from start and end: 1st, last, 2nd, second-last, … and then each picked letter is shifted +1.
MOBILE order: M, E, O, L, B, I → “MEOLBI”. Shift +1: M→N, E→F, O→P, L→M, B→C, I→J ⇒ NFPMCJ.
Q17): If “bright mind wins” is coded as “ta lo mi”, “mind learns fast” is coded as “lo se na”, “wins with effort” is coded as “mi ku re”, and “fast effort pays” is coded as “na re so”, then the code for “effort” is:
A) re
B) na
C) mi
D) ku
Answer: A) re
Explanation: The word “effort” appears in the 3rd and 4th statements. The common code in “mi ku re” and “na re so” is re.
So effort = re.
Q18): If CAT is coded as 072624 and DOG is coded as 201223, then MATH is coded as:
A) 19072614
B) 19072641
C) 18072614
D) 19072514
Answer: A) 19072614
Explanation: The code is made by reversing the word, then writing (27 − position) for each letter in two digits.
MATH reversed is HTAM.
H(8) → 27−8=19, T(20) → 07, A(1) → 26, M(13) → 14.
So code = 19072614.
Q19): If CODE is coded as IGQD and TIME is coded as IPKU, then SMART is coded as:
A) YVDOT
B) YVDTO
C) YUDOT
D) XVDOT
Answer: A) YVDOT
Explanation: From CODE → IGQD, letters are shifted forward by increasing steps: 1st +1, 2nd +2, 3rd +3, … and then the result is reversed.
SMART: S+1=T, M+2=O, A+3=D, R+4=V, T+5=Y → TODVY. Reverse ⇒ YVDOT.
Q20): If “data drives decision” = “ko pa mi”, “good data matters” = “su ko ta”, “decision needs logic” = “mi ra ne”, and “logic drives growth” = “ne pa lu”, then the code for “drives” is:
A) ko
B) pa
C) mi
D) ne
Answer: B) pa
Explanation: The word “drives” appears in the 1st and 4th statements.
Common code between “ko pa mi” and “ne pa lu” is pa.
So drives = pa.
Q21): If BRIGHT is coded as ZMKLTC and PLANE is coded as JRDNQ, then SYSTEM is coded as:
A) SJXVAT
B) SJXVAT
C) SJXVTA
D) SJXWAT
Answer: A) SJXVAT
Explanation: Observe the pattern from BRIGHT → ZMKLTC: each letter is shifted forward by its position (1st +1, 2nd +2, …) and then the whole word is reversed.
Check with PLANE: P+1=Q, L+2=N, A+3=D, N+4=R, E+5=J → QNDRJ, reverse → JRDNQ (matches).
Now SYSTEM: S+1=T, Y+2=A, S+3=V, T+4=X, E+5=J, M+6=S → TAVXJS, reverse → SJXVAT.
Q22): If TRAIN is coded as IRGZM and COLD is coded as LWXO, then MIND is coded as:
A) RWNM
B) RNMW
C) RWMN
D) QWNM
Answer: A) RWNM
Explanation: The coding uses opposite letters (A↔Z, B↔Y, …) and then writes even-position letters first, followed by odd-position letters.
MIND → opposite letters: M→N, I→R, N→M, D→W = NRMW.
Even positions (2,4): R,W → RW; odd positions (1,3): N,M → NM.
So code = RWNM.
Q23): If MATH is coded as BNIU and SIGNAL is coded as JTOHMB, then MASTER is coded as:
A) BNUTSF
B) BNUTFS
C) BNVTSF
D) CNUTSF
Answer: A) BNUTSF
Explanation: The pattern is: swap adjacent pairs, then shift each letter +1.
MASTER → swap pairs: (M,A)→AM, (S,T)→TS, (E,R)→RE → AMTSRE.
Now shift +1: A→B, M→N, T→U, S→T, R→S, E→F → BNUTSF.
Q24): If LOGIC is coded as FLJRO and CODE is coded as HGRF, then PAPER is coded as:
A) UHSDS
B) UHSRD
C) UHGDS
D) UHSDE
Answer: A) UHSDS
Explanation: From LOGIC → FLJRO: each letter is shifted +3 and then reversed.
PAPER → shift +3: P→S, A→D, P→S, E→H, R→U = SDSHU.
Reverse → UHSDS.
Q25): If “deep study daily” = “na ko mi”, “daily practice wins” = “mi sa tu”, and “study hard wins” = “ko re tu”, then “deep wins” =
A) na tu
B) tu na
C) na mi
D) ko tu
Answer: A) na tu
Explanation: “daily” is common in first two → mi. “study” is common in first and third → ko. “wins” is common in second and third → tu.
So “deep” must be na (remaining in first).
Order is preserved, so “deep wins” = na tu.
Q26): If ROAD is coded as 21-17-2-4 and CITY is coded as 6-11-21-25, then DATA is coded as:
A) 7-3-21-1
B) 7-4-21-1
C) 6-3-21-1
D) 7-3-20-1
Answer: A) 7-3-21-1
Explanation: Convert letters to positions (A=1…Z=26) and add a decreasing number based on word length 4: +3, +2, +1, +0.
ROAD: R18+3=21, O15+2=17, A1+1=2, D4+0=4 (matches).
DATA: D4+3=7, A1+2=3, T20+1=21, A1+0=1 → 7-3-21-1.
Q27): If CLOUD is coded as FWQNE and STORM is coded as OTQVU, then RAIN is coded as:
A) PKCT
B) PKTC
C) PLCT
D) OKCT
Answer: A) PKCT
Explanation: The pattern is: reverse the word, then shift every letter +2.
RAIN → reverse = NIAR. Shift +2: N→P, I→K, A→C, R→T → PKCT.
Q28): If LOGIC is coded as MNHHD and DATA is coded as EZUZ, then MUSIC is coded as:
A) NTTHD
B) NTTDD
C) NSUHD
D) OTTHD
Answer: A) NTTHD
Explanation: Consonants move +1, vowels move −1 (A wraps to Z).
MUSIC: M→N, U→T, S→T, I→H, C→D → NTTHD.
Q29): If TIME is coded as FJNU and RATE is coded as BFSU, then EXAM is coded as:
A) BFNY
B) BNFY
C) CENY
D) AFNY
Answer: A) BFNY
Explanation: Each letter is replaced by the next letter, then letters are arranged in alphabetical order.
EXAM → next letters: E→F, X→Y, A→B, M→N → FYBN.
Alphabetical order of FYBN is BFNY.
Q30): If “practice makes perfect” = “la mi so”, “practice daily improve” = “la te ru”, “perfect score matters” = “so na ki”, and “daily score increases” = “te na ve”, then the code for “score” is:
A) so
B) na
C) te
D) ki
Answer: B) na
Explanation: The word “score” appears in the third and fourth statements.
Common code between “so na ki” and “te na ve” is na, so score = na.