LTIMindtree Logical Reasoning: Practice Questions with Solutions

LTIMindtree’s logical reasoning section runs 15 questions in 20 minutes, with no negative marking. That single fact should shape your entire preparation strategy for the section.

On tests with negative marking, leaving a question blank is sometimes rational. On this section, it is never rational. Expected value is positive for every attempt, even a guess. Attempt all 15. Get the straightforward types right first, then spend whatever time remains on the harder ones.

The Logical Reasoning Section at a Glance

The logical reasoning round is one of six sections in the LTIMindtree online test. Three sections are aptitude-based (verbal, quantitative, logical reasoning), and three are coding-based. For the complete structure across all sections, including timing and the coding rounds, see the LTIMindtree test pattern and syllabus.

Attribute	Detail
Questions	15
Marks per question	1
Negative marking	None
Time allotted	20 minutes

The six topic areas in this section:

• Seating arrangements (circular and linear)
• Number series and patterns
• Puzzles
• Coding and decoding
• Direction sense
• Data sufficiency

For coverage of the quantitative aptitude section alongside logical reasoning, including percentage, ratio, and time-speed-distance problems, see the complete LTIMindtree aptitude and logical reasoning guide.

Seating Arrangement Questions: Worked Example

Seating arrangement problems are the most time-intensive type in this section. They can consume 3 to 4 minutes each if you read the constraints in the wrong order. The right method: fix one person first using a direct positional clue (directly opposite, or immediately to the right/left), then apply the remaining constraints from most certain to least.

Here is a representative circular arrangement problem. Work through it step by step before checking the solution.

• Setup: P, Q, R, S, T, and V sit in a circle facing the centre, at equal intervals.
• Constraint 1: P sits directly opposite Q.
• Constraint 2: R is to the immediate right of P.
• Constraint 3: S is to the immediate right of Q.
• Constraint 4: T and V fill the two remaining seats; T is not adjacent to R.
• Question: Who sits to the immediate left of T?

Step-by-step solution:

• Step 1: Label positions 1 to 6 clockwise. Fix P at position 1.
• Step 2: Q is directly opposite P in a 6-seat circle, so Q occupies position 4.
• Step 3: R is to the immediate right of P (clockwise from position 1), so R is at position 2.
• Step 4: S is to the immediate right of Q (clockwise from position 4), so S is at position 5.
• Step 5: Positions 3 and 6 remain for T and V. The seats adjacent to R (position 2) are positions 1 and 3. T cannot be at position 3, so T is at position 6 and V is at position 3.
• Arrangement (clockwise): P(1), R(2), V(3), Q(4), S(5), T(6).
• Answer: The seat immediately to the left of T (one step counterclockwise from position 6) is position 5. S sits to the immediate left of T.

Two things to notice about this solution: applying the “directly opposite” constraint first (Step 2) locked two positions immediately, and the elimination constraint in Step 5 resolved the last ambiguity without guesswork.

Number Series Questions: Worked Examples

Number series questions in LTIMindtree’s logical reasoning section typically involve one of three patterns: differences that form an arithmetic progression, ratio-based sequences, or formula sequences such as n times (n+2). Identifying the pattern type in the first 4 to 5 terms saves the most time.

• Q1: Find the next number in this series: 3, 8, 15, 24, 35, ?

• Step 1: Compute consecutive differences: 8-3=5, 15-8=7, 24-15=9, 35-24=11.

• Step 2: The differences increase by 2 at each step (arithmetic progression: 5, 7, 9, 11, …). Next difference = 13.

• Answer: 35 + 13 = 48.

• Q2: Find the missing number: 2, 8, 14, ?, 34, 48, 62, 80, 98.

• Step 1: Compute the known differences: 8-2=6, 14-8=6, then a gap, then 34-?=10 only if ?=24 (to check); 48-34=14, 62-48=14, 80-62=18, 98-80=18.

• Step 2: The differences arrive in identical pairs, each pair 4 higher than the last: (6, 6), (10, 10), (14, 14), (18, 18). The missing position is the second term in the (10, 10) pair.

• Answer: 14 + 10 = 24.

Coding, Decoding, and Direction Sense: Worked Examples

Coding and decoding

The most common format in LTIMindtree’s test maps each letter to its position in the English alphabet (A=1, B=2, and so on up to Z=26). Verify the key by decoding a known word from the problem, then apply it.

• Q3: TEACHER encodes as 20-5-1-3-8-5-18. Using the same rule, decode 19-20-21-4-5-14-20.
• Step 1: Map each number back to its letter: 19=S, 20=T, 21=U, 4=D, 5=E, 14=N, 20=T.
• Verification: S(19th letter), T(20th), U(21st), D(4th), E(5th), N(14th), T(20th). All positions correct.
• Answer: STUDENT.

Note: some legacy preparation materials include coding problems where numbers exceed 26, which would make the decode impossible using the standard alphabet-position rule. If you encounter a number above 26 in a coding problem, re-read the encoding rule in the question; the rule is almost certainly different from the standard A=1 mapping.

Direction sense

Direction problems track displacement step by step. The efficient approach: sketch a four-direction compass, then mark each leg of the journey before answering.

• Q4: Starting from point A, walk 3 km North, then 4 km East, then 3 km South. Where is the final position relative to A?
• Step 1: After 3 km North: position is 3 km above A on the vertical axis.
• Step 2: After 4 km East: position is 3 km North and 4 km East of A.
• Step 3: After 3 km South: the 3 km South cancels the 3 km North, leaving 0 net vertical displacement.
• Answer: The final position is 4 km directly East of A.

Data Sufficiency: How to Read the Format

Data sufficiency questions present a question and two statements. The task is not to calculate the final answer, but to judge whether the given statements provide enough information to reach it.

The five standard answer choices that appear in every data sufficiency question:

• A: Statement 1 alone is sufficient; statement 2 alone is not.
• B: Statement 2 alone is sufficient; statement 1 alone is not.
• C: Both statements together are sufficient; neither is sufficient on its own.
• D: Each statement alone is independently sufficient.
• E: Both statements together are still not sufficient to answer the question.

Sample problem:

• Question: What is the value of X + Y?
• Statement 1: X = 5.
• Statement 2: X - Y = 3.
• Statement 1 alone: Gives X = 5, but Y is unknown. Not sufficient.
• Statement 2 alone: Gives the difference between X and Y, but no individual value. Not sufficient.
• Both statements together: X = 5 and X - Y = 3, so Y = 2, giving X + Y = 7. Sufficient.
• Answer: C (both statements together are sufficient; neither alone is).

Practise data sufficiency by deliberately testing each statement in isolation before combining them. Students who jump straight to combining both statements miss the single-statement cases and end up choosing C when the answer is A or B.

How to Pace Yourself Across 15 Questions

20 minutes for 15 questions gives 80 seconds per question as an average. That is workable for most types but tight for seating arrangements, which can run 3 to 4 minutes on a complex problem.

A practical sequence for this section:

• Scan all 15 questions at the start. Mark the type of each one.
• Attempt number series, coding-decoding, and direction sense first. These resolve in under 60 seconds each with practice.
• Attempt data sufficiency next. The format is consistent once you know the five answer choices; speed builds quickly with repetition.
• Return to seating arrangement and complex puzzles with the remaining time. Even a partially-solved diagram narrows the answer to 2 or 3 options.
• Attempt every question before time runs out. No negative marking means a guess is always the correct move over a blank.

For the wider context of how the online test connects to the interview stages and final offer, see the LTIMindtree recruitment process for freshers.

LTIMindtree in 2026: What Changes After the Online Test

Clearing the logical reasoning section is the first gate. What differentiates candidates on the other side of it has shifted since 2022.

LTIMindtree resumed campus hiring in 2025 and targets around 5,000 fresher onboardings this fiscal, using AI-assisted coding tools to evaluate candidates in the technical rounds. Standard-track freshers receive ₹4.0 to 5.5 LPA; those who score strongly in the coding sections, particularly candidates with AI and data-structures depth, qualify for the premium track at ₹6.5 to 9.0 LPA.

The company is building in the same direction internally. LTIMindtree launched BlueVerse, a dedicated AI platform unit aimed at helping clients adopt AI and win AI-led contracts, as a core growth driver in 2026. A partnership with MIT and upGrad runs global AI upskilling across its workforce.

The premium-track CTC gap of ₹2.5 to 3.5 LPA over the standard track is coming from coding and AI strength, not from logical reasoning scores. FACE Prep’s 2026 AI roadmap for Indian engineering students maps the skills that matter in that evaluation and the order to build them. For engineers who want to start building with LLMs before the campus drive, TinkerLLM offers project-based practice at ₹299.