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Coding-Decoding questions for IPMAT, with solutions
6 free Coding-Decoding practice questions for IPMAT Indore, Rohtak and JIPMAT, 4 from past papers, each with the answer and a full worked solution. No sign-in. Try each one first, then open the solution. The lessons for this chapter are in Coding-Decoding on Learn.
Question 1Multiple choiceAsked in JIPMAT 2023Word substitution, sentence codes, word formation
Which of the words cannot be formed from the letters of the word 'CONSULTATION'?
- A.NATION
- B.STATION
- C.SOLUTION
- D.SALUTE
Show the answer and solution
Answer: D. SALUTE
Answer: (D) SALUTE
Working:
- CONSULTATION has C, O(2), N(2), S, U, L, T(2), A, I.
- NATION (two N), STATION (two T) and SOLUTION (two O) fit within these counts.
- SALUTE needs E, which is missing.
Why the others are wrong:
- (A) NATION uses N twice; CONSULTATION has two N.
- (B) STATION uses T twice; CONSULTATION has two T.
- (C) SOLUTION uses O twice; CONSULTATION has two O.
Question 2Multiple choiceAsked in JIPMAT 2026Word substitution, sentence codes, word formation
Choose one word out of the given alternatives, which can not be formed from the letters of the word "CONSULTATION".
- A.CONSTANT
- B.NATION
- C.SALUTE
- D.STATION
Show the answer and solution
Answer: C. SALUTE
Answer: (C) SALUTE
Working:
- CONSULTATION has C, O(2), N(2), S, U, L, T(2), A, I.
- CONSTANT needs two N and two T: both available. NATION and STATION fit too.
- SALUTE needs E, which is missing.
Why the others are wrong:
- (A) CONSTANT needs two N and two T, and CONSULTATION has both.
- (B) N, A, T, I, O, N are all available (two N).
- (D) S, T, A, T, I, O, N are all available (two T).
Question 3Multiple choiceAsked in JIPMAT 2021Letter shifting / reversal
In this question, find out how many such pairs of letters are there in the given word each of which has as many letters between them in the word as in the English alphabet.
CREATIVE
- A.Four
- B.One
- C.Three
- D.Two
Show the answer and solution
Answer: C. Three
Answer: (C) Three
Working:
- Write the positions: C3 R18 E5 A1 T20 I9 V22 E5.
- C-E: one letter between in the word (R) and one in the alphabet (D) ✓.
- A-E (4th and 8th letters): three letters between in the word (T, I, V) and three in the alphabet (B, C, D) ✓.
- T-V: one letter between in the word (I) and one in the alphabet (U) ✓.
- No other pair matches (e.g. R-T: two letters between in the word, one in the alphabet). Total = 3.
Why the others are wrong:
- (A) Four counts a pair that does not match; only C-E, A-E and T-V have equal gaps.
- (B) One stops after the first pair (C-E); A-E and T-V also qualify.
- (D) Two misses A-E, whose letters are four places apart in both the word and the alphabet.
Question 4Multiple choiceAsked in JIPMAT 2021Letter shifting / reversal
In the word 'SOLUTION', how many pairs of letters are there in the word that have as many letters between them as they do in the English alphabet?
- A.Two
- B.Three
- C.One
- D.Four
Show the answer and solution
Answer: B. Three
Answer: (B) Three
Working:
- Positions: S19 O15 L12 U21 T20 I9 O15 N14.
- U-T: next to each other in the word and in the alphabet (T comes just before U) ✓.
- O-N (last two letters): next to each other in both ✓.
- L-I: two letters between in the word (U, T) and two in the alphabet (J, K) ✓.
- No pair reads forwards, and no other pair matches. Total = 3.
- The alphabet may be read in either direction; counting only forward pairs would give none, which is not an option.
Why the others are wrong:
- (A) Two leaves out one of U-T, O-N, L-I; L-I is the one most often missed because its letters are three places apart.
- (C) One counts only a neighbouring pair; there are two such pairs (U-T, O-N) plus L-I.
- (D) Four counts a pair that does not match.
Answer-key note: Count a pair when the number of letters between the two letters in the word equals the number between them in the alphabet, reading the alphabet forwards or backwards.
Question 5Multiple choiceWritten by IPMATwayWord substitution, sentence codes, word formation
In a certain code language: 'rain brings green fields' is written as 'ka lo mi tu' 'green trees need rain' is written as 'pe mi zo ka' 'fields need water' is written as 'zo ru tu' 'trees bring shade' is written as 'ne pe sa'
What is the code for 'brings'?
- A.lo
- B.tu
- C.ka
- D.ne
Show the answer and solution
Answer: A. lo
Compare sentences 1 and 2: the common words are 'rain' and 'green', and the common codes are 'ka' and 'mi', so {rain, green} = {ka, mi}. Compare sentences 1 and 3: the only common word is 'fields', and the only common code is 'tu', so fields = tu. In sentence 1 ('rain brings green fields' = 'ka lo mi tu'), three codes are now used up (ka, mi, tu), so brings = lo. Watch out: sentence 4 has 'bring', a different word, so its codes say nothing about 'brings'. A full search of all consistent code lists confirms brings = lo in every case.
Question 6Multiple choiceWritten by IPMATwayWord substitution, sentence codes, word formation
In a certain code language: 'cold wind blows hard' is written as 'ta re si vo' 'hard work pays well' is written as 'lu vo ki da' 'wind and rain' is written as 'mo si fa' 'cold rain pays' is written as 'ki fa re'
The code of which of the following words CANNOT be found with certainty?
- A.blows
- B.work
- C.and
- D.rain
Show the answer and solution
Answer: B. work
Shared words give: sentences 1 and 4 share only 'cold' and only 're', so cold = re; sentences 1 and 3 give wind = si; sentences 1 and 2 give hard = vo; sentences 2 and 4 give pays = ki; sentences 3 and 4 give rain = fa. Then sentence 1 leaves blows = ta and sentence 3 leaves and = mo. Sentence 2 ('hard work pays well' = 'lu vo ki da') has hard = vo and pays = ki, leaving 'work' and 'well' for 'lu' and 'da'. Neither word appears anywhere else, so we cannot tell which is which: the code for 'work' cannot be found with certainty. A search over all code lists that fit the four sentences finds two, differing only in work and well.