AILET 2027 Logical Reasoning Strategy (70 Questions)

Logical Reasoning is 70 of the 150 questions in AILET 2027, so a steady 80 to 85 percent accuracy here moves your rank more than anything else you can do. The method is simple: identify the question type first, find the conclusion in the passage, and judge every option only against what the passage says. The paper is on 13 December 2026 as reported; confirm on the NLU Delhi site.

Time and attempt plan

Out of 120 minutes, plan roughly 50 to 55 minutes for this section. That is under 50 seconds per question, which sounds harsh but works because passages are short and many questions are answered by finding the conclusion. With a 0.25 penalty, attempt a question when you can cross out two options. Mark skipped ones and return if time remains.

The five habits that win marks

• Read the question stem first, then the passage. You will read with a purpose.
• Underline the conclusion (words like therefore, hence, so, clearly) and the evidence. Most wrong answers attack the wrong part of the argument.
• Never use outside knowledge. If the passage says a medicine is effective, treat it as effective for the question.
• Beware extreme words: all, never, only, entirely. They are rarely right in inference questions and often right in flaw questions.
• Check scope. An option can be true in the real world and still not answer the question.

Worked example 1: weaken

Passage: The municipal corporation says that banning thin plastic bags will cut blocked drains in the city, because plastic bags are the main cause of blockage.

Question: Which option most weakens the corporation’s claim?

• (a) Shops in the city will switch to paper bags.
• (b) A survey of drain clearing records shows most blockages are caused by construction debris.
• (c) Some citizens already carry cloth bags.
• (d) Plastic bags take long to decompose.

Reasoning: The conclusion is that the ban will cut blockages. The evidence is that bags are the main cause. To weaken, attack the evidence. Option (b) says the main cause is something else, so removing bags would not help much. Options (a) and (c) are about shopping behaviour, and (d) is true but about decomposition, not drains. Answer: (b).

Worked example 2: assumption

Passage: Rohan has scored above 80 percent in every mock test he has taken with a timer. Therefore he will score above 80 percent in the real examination.

Question: Which is an assumption the argument depends on?

• (a) Rohan enjoys taking mock tests.
• (b) The real examination is similar enough in difficulty to the mock tests.
• (c) Rohan’s friends have scored lower.
• (d) Rohan will study more before the examination.

Reasoning: The argument jumps from mocks to the real exam. For that jump to work, the two must be comparable. Use the negation test: if the real exam were far harder than the mocks, the conclusion would collapse. Answer: (b). Option (d) would help but the argument does not need it.

Worked example 3: inference (must be true)

Passage: Every candidate who was offered a place was interviewed. Some interviewed candidates were not offered a place. No candidate was interviewed without first qualifying the screening round.

Question: Which must be true?

• (a) Every candidate who qualified the screening round was offered a place.
• (b) Some candidates who qualified the screening round were not offered a place.
• (c) Every interviewed candidate was offered a place.
• (d) No candidate who qualified the screening round was interviewed.

Reasoning: The third sentence tells us everyone interviewed had qualified. The second says some interviewed candidates got no offer. Those candidates qualified and were not offered a place, so (b) must be true. Option (c) contradicts the second sentence, (d) contradicts the third, and (a) goes beyond the passage because it never says all qualifiers were interviewed. In a “must be true” question, an option that is merely possible is wrong.

Worked example 4: syllogism

Statements: Some contracts are void. All void things are unenforceable.

Conclusions: I. Some contracts are unenforceable. II. All unenforceable things are contracts.

Reasoning: Draw a circle for contracts that overlaps a circle for void things, and place void entirely inside unenforceable. The overlap between contracts and void things lies inside unenforceable, so I follows. Conclusion II reverses the second statement, which does not follow. Answer: only I follows.

Worked example 5: arrangement

Five advocates A, B, C, D and E sit in a row facing north. A is at the extreme left. C sits immediately to the right of B. D does not sit next to A. E sits at the extreme right. Who sits in the middle?

Reasoning: Positions are 1 to 5 from the left. A is 1 and E is 5. B, C and D fill 2, 3 and 4. D cannot be 2, and B and C must be consecutive with C to the right, so B is 2, C is 3, D is 4. Answer: C.

How to practise

Do 20 questions a day sorted by type, not mixed, for the first half of your preparation, then switch to mixed sets. After each set, write why each wrong option is wrong. This is slower than doing more questions, and it is the reason scores move. If you want timed mock passages in the exact section layout, Lexfolio’s AILET 2027 mock tests put Logical Reasoning at Q81 to Q150 with a short explanation for every question. For the overall month plan see the 4 week AILET plan.

Common traps by question type

• Strengthen and weaken: the correct option usually touches the link between evidence and conclusion. Options that restate the evidence or add a nice-to-have fact are decoys.
• Assumption: use the negation test. Negate the option; if the argument collapses, it is an assumption.
• Inference: the right answer is usually modest. If it goes beyond the passage, it is wrong however sensible it sounds.
• Flaw: typical flaws are confusing correlation with cause, generalising from a small sample, and treating a necessary condition as sufficient.
• Parallel reasoning: ignore the topic and match the structure. Replace the content with letters, then pick the option with the same shape.

A check you can do in ten seconds

Before you lock in an answer, ask: “Which sentence in the passage makes this option right?” If you cannot point to one, or if the option needs a fact that the passage does not give, drop it. This one check removes most careless errors in reasoning sections.