LTIMindtree Logical Reasoning: 2026 Guide with Solutions

LTIMindtree’s online test includes 15 logical reasoning questions with no negative marking, making it the one section where attempting all 15 costs you nothing.

LTIMindtree Test Pattern and the Reasoning Section (2026)

Larsen and Toubro Infotech merged with Mindtree in 2022 to form LTIMindtree. The brand and the hiring process both run under that name now. The online test structure has stayed consistent post-merger. The full test covers six areas:

Section	Description
Implementation	Coding and problem-solving in a chosen language
Data Structures / Algorithms	Standard DSA questions
Advanced Algorithms	Higher-complexity algorithm problems
English Communication	Grammar, comprehension, verbal ability
Quantitative Aptitude	Arithmetic and numerical reasoning
Logical Reasoning	15 questions, 1 mark each, no negative marking

According to Times of India coverage from 2025, LTIMindtree resumed campus hiring and is targeting around 5,000 fresher onboardings this fiscal, with AI-assisted coding evaluation now part of the screening process. There are two fresher tracks with different CTC bands:

Track	CTC range	Differentiator
Graduate fresher	4.0 to 5.5 LPA	Standard aptitude, technical, and HR rounds
Premium fresher	6.5 to 9.0 LPA	Higher cutoff plus AI and coding depth review

For the full test breakdown, section timing, and cutoff history, see the LTIMindtree test pattern and syllabus guide.

Coding-Decoding Questions

Two question types appear in this sub-topic: letter-shift codes and numeric-sum codes. Both follow a single consistent rule per question. Find the rule, verify it against the given example, then apply it.

Q1: Letter-Shift Code

• Question: In a code, NICE = OJDF. Using the same rule, what is the code for FAST?
• Options: A) GBTU B) GATU C) HBTU D) GBTV
• Answer: A) GBTU
• Derivation:
  • Rule: each letter moves one position forward in the alphabet (A becomes B, B becomes C, and so on).
  • Verify with NICE: N+1=O, I+1=J, C+1=D, E+1=F → OJDF. Rule confirmed.
  • Apply to FAST: F+1=G, A+1=B, S+1=T, T+1=U → GBTU.

Q2: Numeric-Sum Code

• Question: In a code, each word is represented by the sum of the alphabetical position values of its letters, where A=1, B=2 up to Z=26. If NOTE = 54, what does STAR code to?
• Options: A) 54 B) 56 C) 58 D) 62
• Answer: C) 58
• Derivation:
  • Verify with NOTE: N=14, O=15, T=20, E=5. Sum = 14+15+20+5 = 54. Rule confirmed.
  • Apply to STAR: S=19, T=20, A=1, R=18. Sum = 19+20+1+18 = 58.

For a broader set of coding-decoding and logical reasoning problems with difficulty levels, the LTIMindtree aptitude and logical reasoning complete guide covers the full range.

Number Series and Blood Relations

Q3: Number Series

• Question: Find the missing number in the series: 2, 6, 12, 20, __, 42.
• Options: A) 24 B) 28 C) 30 D) 32
• Answer: C) 30
• Derivation:
  • Pattern: each term equals n times (n+1) where n is the position number.
  • Position 1: 1 x 2 = 2. Position 2: 2 x 3 = 6. Position 3: 3 x 4 = 12. Position 4: 4 x 5 = 20.
  • Position 5: 5 x 6 = 30. Position 6: 6 x 7 = 42. Cross-check: 42 matches the given value.
  • Alternate check using differences: the gaps between terms are 4, 6, 8, 10, 12 (each increases by 2). The gap after 20 is 10, so 20 + 10 = 30.

Q4: Blood Relations

• Question: P’s mother is Q’s father’s only sister. How is P related to Q?
• Options: A) Sibling B) Cousin C) Niece or Nephew D) Uncle or Aunt
• Answer: B) Cousin
• Derivation:
  • Q’s father has exactly one sister, and that sister is P’s mother.
  • This means P’s mother and Q’s father are siblings.
  • P is the child of P’s mother. Q is the child of Q’s father.
  • P and Q therefore share the same set of grandparents but do not share a parent.
  • Two people who share grandparents but not parents are cousins, not siblings.
  • Common error: selecting “Sibling” (Option A). That error arises from skipping the step that identifies P’s mother and Q’s father as the sibling pair, not P and Q themselves.

Direction Sense and Syllogisms

Q5: Direction Sense

• Question: Rohit starts at Point A, walks 6 km north, then turns right and walks 8 km to Point B. What is the straight-line distance between A and B?
• Options: A) 7 km B) 8 km C) 10 km D) 14 km
• Answer: C) 10 km
• Derivation:
  • Rohit travels 6 km north and then 8 km east (turning right from north means facing east).
  • These two legs form the two perpendicular sides of a right triangle.
  • By the Pythagorean theorem: distance = square root of (6 squared + 8 squared) = square root of (36 + 64) = square root of 100 = 10 km.

Q6: Syllogism

• Statements:
  • Statement 1: All engineers are graduates.
  • Statement 2: All graduates are employed.
• Conclusions:
  • Conclusion I: All engineers are employed.
  • Conclusion II: Some employed people are engineers.
• Answer: Both conclusions follow.
• Derivation:
  • Conclusion I: Statement 1 says all engineers are graduates. Statement 2 says all graduates are employed. Combining them: all engineers are employed. This is a textbook three-term syllogism (Barbara form, AAA-1). It is valid. It is NOT “uncertain.”
  • Conclusion II: “All engineers are employed” allows the valid inference that “some employed people are engineers.” Converting a universal affirmative statement to a particular affirmative is a standard logical operation.
  • Common error: labelling these conclusions as “uncertain” or “data insufficient.” With two universal affirmative statements in this structure, both conclusions here follow with certainty.

Seating Arrangements

The 15-question reasoning section tests seating arrangement through a set of position clues. Work through each clue in sequence rather than trying to solve all clues at once.

Q7: Linear Seating Arrangement

• Setup: Six people A, B, C, D, E, and F sit in a row facing north. All conditions must hold simultaneously.
• Clues:
  • C is at the leftmost end.
  • B is at the rightmost end.
  • A is immediately to the left of B.
  • E is immediately to the right of C.
  • D is immediately to the right of E.
• Derivation:
  • Position 1 = C (leftmost, given directly). Position 6 = B (rightmost, given directly).
  • A is immediately left of B, so A = Position 5.
  • E is immediately right of C, so E = Position 2.
  • D is immediately right of E, so D = Position 3.
  • F is the only person without a position assigned: F = Position 4.
  • Final arrangement, left to right: C (1), E (2), D (3), F (4), A (5), B (6).
• Q7a: How many people sit between D and A?
  • D is at Position 3. A is at Position 5. Only F at Position 4 sits between them.
  • Answer: 1 person (F).
• Q7b: What is F’s position from the right end?
  • F is at Position 4 out of 6 total seats. From the right: 6 - 4 + 1 = 3.
  • Answer: 3rd from the right.

For a complete walkthrough of the full LTIMindtree hiring sequence, rounds, and shortlisting criteria, see the LTIMindtree recruitment process for freshers.

LTIMindtree in 2026: Beyond the Reasoning Gate

Clearing the 15 reasoning questions gets you to LTIMindtree’s coding round, where AI-assisted coding evaluation now operates alongside the standard screen. The premium track (6.5 to 9.0 LPA, per the table above) differentiates on AI and coding depth, not just aptitude scores. That is the layer most students skip during campus prep.

TinkerLLM at ₹299 is the entry point for building that layer without committing months up front. The focus is on deploying a working LLM project rather than watching a course. For the full 9-month production-AI engineering curriculum that maps to what the premium-track interviewers are asking about, the 2026 AI roadmap for Indian engineering students outlines what to build and in what sequence.