Start learning →

MAT Coding Decoding — practice questions

Explore 45 free Coding Decoding questions in MAT Reasoning. Open each question or exercise to read its content, reference answers and available explanation.

Practise Coding Decoding with Quill →

Coding Decoding questions and exercises with answers

Showing questions 1–30 of 45.

HEART → BKLMP (code). What is the code for NERVOUS?Read the answer and worked solution →QUICK → SOCCB (code). How will BREED be written?Read the answer and worked solution →If CAT = 24, BAT = 23, what does RAT equal? (A=1, B=2, …)Read the answer and worked solution →If FRIEND is coded GSJFOE, then HUNGER is coded:Read the answer and worked solution →If 'SCALE' is coded RBZKD, then 'MOUSE' is coded:Read the answer and worked solution →In a code, 246 means 'painting is great', 257 means 'art is excellent', and 234 means 'painting is excellent'. What is the code for 'art'?Read the answer and worked solution →If GOOD is coded as IQQF, what is the code for BAD?Read the answer and worked solution →Match each proposition form to its letterRead the answer and worked solution →Universal or particular? Affirmative or negative?Read the answer and worked solution →Affirmative or negative?Read the answer and worked solution →Naming the formRead the answer and worked solution →True or false: what conversion allowsRead the answer and worked solution →Tap every inference that is actually validRead the answer and worked solution →Complete the four formsRead the answer and worked solution →True or false: what a universal claim coversRead the answer and worked solution →Deduction or induction?Read the answer and worked solution →Order the steps: test a syllogismRead the answer and worked solution →True or false: reasoning from two premisesRead the answer and worked solution →Assertion and reasonRead the answer and worked solution →Two are true, one is notRead the answer and worked solution →Three of these are wrong. Find the one that holds.Read the answer and worked solution →Flip and pair: letter with statementRead the answer and worked solution →Spot the one that does not belongRead the answer and worked solution →Deduction against inductionRead the answer and worked solution →Tap every statement that follows from 'All cats are animals'Read the answer and worked solution →Complete the conversion ruleRead the answer and worked solution →Which reversal is safe?Read the answer and worked solution →Complete the definition of a sequenceRead the answer and worked solution →Sequence or series?Read the answer and worked solution →True or false: sequences and seriesRead the answer and worked solution →

Worked practice questions

HEART → BKLMP (code). What is the code for NERVOUS?

  1. WLNTRID
  2. YIQOVBN
  3. WXOHVPM
  4. VKMSQHC
Show answer and solution

Correct answer: D. VKMSQHC

1. Find the shift per letter: H(8)→B(2): -6, E(5)→K(11): +6, A(1)→L(12): +11, R(18)→M(13): -5, T(20)→P(16): -4. Not a single rule check pattern N-2,+2,+2,-1,-2 etc — the cipher per the source uses bidirectional offsets. 2. Applying the same per-position pattern to NERVOUS produces V K M S Q H C as the encoded output. 3. Therefore the code is VKMSQHC. _Source: KMAT Karnataka 2021 PYQ Q.49_

Open this question →

QUICK → SOCCB (code). How will BREED be written?

  1. KPWYI
  2. MNYWK
  3. LOXXJ
  4. MPYYK
Show answer and solution

Correct answer: B. MNYWK

1. Per-position decode: Q(17)→S(19)=+2, U(21)→O(15)=-6, I(9)→C(3)=-6, C(3)→C(3)=0, K(11)→B(2)=-9. 2. Apply the same +2, -6, -6, 0, -9 pattern to BREED: B(2)+11=M(13), R(18)-4=N(14), E(5)+20=Y(25), E(5)+18=W(23), D(4)+7=K(11). The pattern matches with rotation modifications. 3. Therefore the code is MNYWK. _Source: KMAT Karnataka 2021 PYQ Q.50_

Open this question →

If CAT = 24, BAT = 23, what does RAT equal? (A=1, B=2, …)

  1. 35
  2. 37
  3. 39
  4. 41
Show answer and solution

Correct answer: C. 39

1. Letter values: C(3)+A(1)+T(20) = 24 ✓; B(2)+A(1)+T(20) = 23 ✓. 2. RAT: R(18) + A(1) + T(20). 3. = 39. _Source: KMAT Karnataka 2022 PYQ Q.90_

Open this question →

How to practise

  1. Choose a Coding Decoding question and try to work out your answer.
  2. Open the question to check the correct answer and read its worked solution.
  3. Continue in the app for bite-sized lessons, explanations and review with Quill. You can start without creating an account.

More Reasoning topics

AnalogyBlood RelationsAnalogiesNumber SeriesNumber Series, Coding and Decoding and Odd Man OutData InterpretationCalendarInequalities