Syllogism Questions Tricks: The Venn Method

📑 On this page

⚡ The 20-second answer

A syllogism gives you two or three All / Some / No statements and asks which conclusions are forced. Draw the smallest Venn the statements allow and ask of each conclusion: is it true in every picture? Then it follows. In only some? Merely possible. The number one trap: 'some' never means 'some are not'.

🎬 The 30-second story

The black coffee theory

“Every AIR-1 drinks black coffee. I drink black coffee. So I'm basically a topper.”

☕

Aarav

Aarav, 11 pm, third cup.

“Wait. Does that actually follow?”

📝

Meher

Meher, mid-mock in the hostel.

“Toppers sit inside the coffee circle. So do you. Nothing puts you inside the topper one.”

⭕

Zoya

Zoya's red pen, on a napkin.

“My uncle drinks black coffee. Failed his driving test twice.”

📱

Rohan

Rohan has a counterexample.

Tara's verdict: 'All toppers are coffee drinkers' puts toppers inside coffee drinkers. Being in the big circle says nothing about the small one. A conclusion follows only if it holds in every picture the lines allow, and Rohan's uncle is a picture where Aarav's fails.

How does CLAT word syllogism questions?

CLAT 2018 asked them the classic way: statements, conclusions, which follow. CLAT 2019 ran the test backwards and added one-liners on valid versus true. Since 2020 the same moves hide inside passages.

The stem says	It really asks	First move
'Presume that whatever statements given are true' (2018)	Ignore real life.	Draw the lines, nothing you know.
'Which conclusion(s) follow?'	True in every drawing?	Try to break each one.
'The third can be logically derived from the preceding two' (2019)	The same test, backwards.	Find the shared middle term.
'Logically valid / invalid / true / false' (2019)	Does the link hold?	Judge the form, not the facts.

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What do All, Some, No and Some-not really mean?

Four shapes, four fixed pictures. All A are B: A inside B. No A are B: apart. Some A are B: at least one in the overlap. Some A are not B: one A outside B. Nothing more is promised.

🎚️ The scale

How much does each word promise?

← Nothing sharedFully inside →

e.g. No reels are podcasts

Some not

e.g. Some memes are not funny

Some

e.g. Some memes are funny (maybe all)

All

e.g. All memes are reels

📌 'Some' means at least one, possibly all

'Some students are hostellers' does not say some aren't. It could be every student. Treat most, many and a few as plain 'some'.

Which statements can you flip?

Flipping is your first free conclusion. No flips to No. Some flips to Some. All A are B flips only to Some B are A. Some-not doesn't flip at all. Aarav tried to flip an All into an All.

⭕ Venn check

All flips into Some, never into All

Statements

▸All toppers are coffee drinkers

Conclusions

Some coffee drinkers are toppers
✅ Definitely follows — toppers sit inside, so the overlap is never empty
All coffee drinkers are toppers
🤔 Possible, not certain — Aarav's mistake: true only if the circles coincide

shaded = empty× = at least one lives here

How do you solve any syllogism with the Venn method?

1
Translate
Rewrite each line as All / Some / No / Some-not. 'Only toppers get medals' = All medal-winners are toppers.
2
Draw the minimum
Shade for All and No, one × per Some. Leave the rest open.
3
Try to break it
Redraw, obeying every line, so the conclusion is false. Can't? It follows.
4
Sort the leftovers
Could go either way? Possible. Then look for an either-or pair.

If the statements are…	Then…	Example
Both 'some'	Nothing definite about the end terms	Some A are B + Some B are C
Both negative	Nothing definite about the end terms	No A are B + No B are C
One 'some'	Only a 'some' can follow	Some A are B + All B are C → Some A are C
One negative	Only a negative can follow	All A are B + No B are C → No A are C

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💡 Shortcuts filter; the drawing proves

Use the rules to kill options in seconds. When two survive, sketch. Every 2018 and 2019 syllogism fell to one quick three-circle sketch.

Which syllogism traps catch everyone?

Either-or: neither follows, but one must

When neither conclusion follows alone, look for a complementary pair: same two terms, exactly one true in any world. The pairs are Some / No and All / Some-not.

⭕ Venn check

Either-or: one of these must be true

Statements

▸Some reels are memes
▸Some memes are trends

Conclusions

Some reels are trends
🤔 Possible, not certain — two 'some' lines never link reels to trends
No reels are trends
🤔 Possible, not certain

shaded = empty× = at least one lives here

Neither follows alone, but exactly one must be true: 'Either I or II'.

⚠️ Either-or needs both conditions

Both must fail alone and form a true pair. 'Some reels are trends' and 'All reels are trends' are no pair: both can be true, or both false. Then it's 'Neither'.

'Is a possibility' conclusions

For 'X is a possibility', flip your test. It is right if even one legal drawing makes X true. It fails only when the statements forbid X outright.

⭕ Venn check

Possible, impossible, forced

Statements

▸All phones are gadgets
▸No gadgets are toys

Conclusions

Some phones are toys
❌ Does not follow — impossible, so 'is a possibility' fails too
All gadgets are phones
🤔 Possible, not certain — not banned: as a possibility, true
Some toys are not phones
✅ Definitely follows

shaded = empty× = at least one lives here

Is a valid argument always true?

No. Validity is about the link: if the premises were true, the conclusion would have to be. Truth is about the world. Only a valid argument with true premises (a sound one) guarantees a true conclusion.

⚔️ Side by side

Valid is not the same as true

🔗Valid

the link holds

•Conclusion forced by the premises

🌍True

matches reality

•A fact about the world

Test	Valid	True
All men are chairs; John is a man; so John is a chair	Valid ✓	Conclusion false
All men are mortal; Victoria is a woman; so Victoria is mortal	Invalid ✗	Conclusion true

'Presume the statements are true' is a validity instruction.

Can you crack these syllogisms in 40 seconds?

✍️ Worked example Warm-up ⏱ 30 sec

The mentor and the poet

All coaches are mentors. Some mentors are poets.
I. Some coaches are poets. II. Some poets are mentors.

1
Draw: coaches inside mentors; one × where mentors meet poets, on the coach boundary.
2
Break I: push the × outside coaches. Every line still holds. Not forced.
3
Break II: you can't. It's a flip of line 2.

Answer: Only II follows.

⚡ The exam-hall shortcut

The 'some' line never touches coaches, so I can't follow. II is a flip.

✍️ Worked example CLAT level ⏱ 40 sec

Reels, memes and podcasts

All memes are reels. No reels are podcasts.
I. No memes are podcasts. II. Some podcasts are not memes. III. All reels being memes is a possibility.

1
Translate: All + No, so any definite conclusion is negative.
2
Draw: memes inside reels; reels and podcasts apart.
3
I and II: memes never reach podcasts, and podcasts exist outside reels, so outside memes. Both forced.
4
III: nothing bans memes filling the reel circle. True.

Answer: All three follow.

⚡ The exam-hall shortcut

All + No gives 'No first are third'. For a possibility, ask only: is it banned?

⭕ Venn check

Worked example 2, drawn

Statements

▸All memes are reels
▸No reels are podcasts

Conclusions

No memes are podcasts
✅ Definitely follows
Some podcasts are not memes
✅ Definitely follows
All reels are memes
🤔 Possible, not certain — so the possibility claim is true

shaded = empty× = at least one lives here

✍️ Worked example Tricky ⏱ 45 sec

The batsman who keeps

Some batsmen are bowlers. No bowler is a keeper.
I. Some batsmen are keepers. II. No batsman is a keeper. III. Some batsmen are not keepers.

1
Translate: Some + No. Only a negative can be definite.
2
Draw: × where batsmen meet bowlers; bowlers and keepers apart.
3
III: the batsman who bowls can't keep. Forced.
4
I, II: neither forced, but they are a Some/No pair.

Answer: III follows, and either I or II follows.

⚡ The exam-hall shortcut

Some + No always gives 'Some first are not third'. Then spot the pair.

✍️ Worked example CLAT level ⏱ 60 sec

The fest volunteer policy

A law school fest committee announced that every student who volunteers will receive a certificate, and that certificates will be issued only to students who attended the August safety orientation. Some first-years have already registered as volunteers. Critics said many second-years missed the orientation.

Which must be true? (A) Every first-year attended the orientation. (B) Some first-years attended it. (C) Everyone who attended will volunteer. (D) No second-year will get a certificate.

1
Translate: All volunteers get certificates. All certificate holders attended ('only to' flips the order). Some first-years are volunteers.
2
Draw: volunteers inside certificate holders inside attendees; a × where first-years meet volunteers.
3
B: that × is a first-year inside attendees. Forced.
4
A turns some into every. C flips an All. D treats 'many' as 'all'.

Answer: B

⚡ The exam-hall shortcut

'Only' flips the order; then Some + All + All gives 'Some first are last'.

How has CLAT asked syllogisms?

📝 Asked in CLAT 2018 · Q107 Some + All

Directions: Read the statements and presume that whatever statements given are true. On the basis of that, choose the most appropriate conclusion(s) given below. Statements: Some rats are cows. All cows are animals. Conclusions: I. All rats are animals II. Some animals are rats

Choose the most appropriate option.

AOnly Conclusion I follows

BOnly Conclusion II follows

CBoth Conclusions I and II follow

DNeither Conclusion I nor Conclusion II follows.

Reveal answer + reasoning

Answer: B

The cow-rats sit inside cows, which sit inside animals, so Some animals are rats is forced. Other rats are left open, so I is not. Answer B.

Why the others fail

A — True in biology, which is the trap. 'Presume' means only the printed lines count.
C — Needs I.
D — II is forced.

⭕ Venn check

CLAT 2018 Q107, drawn

Statements

▸Some rats are cows
▸All cows are animals

Conclusions

All rats are animals
🤔 Possible, not certain
Some animals are rats
✅ Definitely follows

shaded = empty× = at least one lives here

📝 Asked in CLAT 2018 · Q108 Four terms

Directions: as in Q107. Statements: All the students are young. All the teens are young. Some men are teens. Conclusions: I. Some students are teens. II. Some young are students. III. Some young are men.

Choose the most appropriate option.

AOnly (I) follows

BOnly (II) and (III) follow

COnly (I) and (II) follow

DOnly (I) and (III) follow

Reveal answer + reasoning

Answer: B

Test each conclusion with only its sets. II: students sit inside young. Forced. III: the men who are teens are young. Forced. I: students and teens both sit inside young, but nothing makes them meet. Answer B.

Why the others fail

A — I is the one that fails.
C — Includes I.
D — Includes I, drops II.

⭕ Venn check

Q108: two circles inside 'young'

Statements

▸All students are young
▸All teens are young

Conclusions

Some students are teens
🤔 Possible, not certain — two inner circles may or may not overlap
Some young are students
✅ Definitely follows

shaded = empty× = at least one lives here

📝 Asked in CLAT 2019 · Q31 Reverse syllogism

Instructions: Choose the set of three statements where the third statement can be logically derived from the preceding two. 1. Some students love reading. 2. Some adults do not love reading. 3. Some students are not adult. 4. Some students are adult. 5. No reading lover is an adult. 6. Some men do not love reading.

The set of statements is:

A1, 3, 4

B1, 5, 3

C1, 2, 4

D6, 2, 4

Reveal answer + reasoning

Answer: B

Our solution (CLAT 2019 has no official key). Read each option as premise, premise, conclusion. B: some students love reading; no reading lover is an adult; so some students are not adult. Answer B.

Why the others fail

A — Two 'some' lines give nothing definite.
C — Two 'some' lines again.
D — Two particular negatives, and students appear in neither premise.

📝 Asked in CLAT 2019 · Q37 Valid vs true

'All men are mortal and Victoria is a woman and hence Victoria is mortal'. This statement is:

ALogically Valid

BLogically Invalid

CLogically True

DLogically False

Reveal answer + reasoning

Answer: B

Our solution. The premise covers men; Victoria is placed among women. Nothing links women to mortality, so the conclusion isn't forced, though it's true in life. A true conclusion through a broken link is invalid. Answer B.

Why the others fail

A — Valid would need 'all women are mortal'.
C — The conclusion is true; the reasoning isn't.
D — Nothing contradicts itself.

Also asked in 2019 (our solutions): Q32 D (all boys are girls, all girls need books, so all boys need books); Q33 C; Q38 A, 'John Doe is a chair': absurd, and valid.

What do most students get wrong about syllogisms?

💥 Myth vs fact

Myth vs fact: syllogisms

🙅 Myth

'Some students are hostellers' means some are not.

Tap to bust it →

✅ Fact

'Some' means at least one, maybe all. Never add a some-not.

🙅 Myth

If a conclusion is true in real life, it follows.

Tap to bust it →

✅ Fact

2018 Q107's 'All rats are animals' is true in biology and wrong in the syllogism.

🙅 Myth

When neither follows, pick 'either I or II'.

Tap to bust it →

✅ Fact

Only for a Some/No or All/Some-not pair on the same terms.

Can you beat these five syllogisms?

🎯 Quick quiz

Syllogism quiz

0 / 5

Q1. All pens are blue. Some blue things are cheap. I. Some pens are cheap. II. Some cheap things are blue.

Q2. No apps are free. All games are apps. I. No games are free. II. Some apps are games.

Q3. Some cafés are bookshops. Some bookshops are libraries. I. Some cafés are libraries. II. No café is a library.

The coaching centre's notice reads: 'Every student shortlisted for the moot court team has cleared the research test. None of the students who cleared the research test skipped the mock series. Some debaters have been shortlisted for the moot court team.' Aarav tells Meher that the debaters must be the hardest-working batch in the centre, since all of them clearly sat every mock.

Q4. Based only on the notice, which must be true?

Rohan forwards a message to the family group: 'All superfoods cure anxiety. Ragi is a superfood. So ragi cures anxiety. Forward to ten people!' Zoya replies that the first line is false, because plenty of so-called superfoods do nothing for anxiety. Rohan answers, 'Then my logic must be wrong too.' Meher, who is preparing for CLAT, is asked to settle it.

Q5. Which assessment is most accurate?

🎯 Syllogisms in a nutshell

Follows = true in every drawing the lines allow.
All flips to Some; Some to Some; No to No; some-not never.
Some + All → Some; All + No → No; Some + No → some-not.
Two 'some's or two negatives: nothing definite.
Valid is about the link, not the world.

📎 Cheat sheet

'Presume the statements are true' → classic syllogism → draw the minimum Venn.
'Which conclusion(s) follow?' → follows-or-possible → try to break each one.
'… is a possibility' → possibility → true unless banned.
'Either I or II' option → pair check → Some/No or All/some-not.
'Third derived from the preceding two' → reverse syllogism → find the middle term.
'Valid / invalid / true / false' → validity → judge the link.

Frequently asked questions

What is the easiest way to solve syllogism questions?

Use the Venn method. Rewrite each statement as All, Some, No or Some-not, draw only what the lines force, then try to redraw the picture so each conclusion is false. If you cannot, it follows. Rules like 'two somes give nothing definite' clear options first.

What does a 'possibility' conclusion mean in a syllogism?

It claims only that something could be true. It is right if even one picture obeys every statement and makes it true, and wrong only when the statements rule it out: 'some phones are toys' fails when all phones are gadgets and no gadget is a toy.

When is the answer 'either I or II follows'?

When neither conclusion follows on its own and the two form a complementary pair on the same two terms, so exactly one must be true: 'Some A are B' with 'No A are B', or 'All A are B' with 'Some A are not B'. Otherwise, neither.

Are syllogisms still asked in CLAT?

Standalone sets appeared in CLAT 2018 and 2019. Since 2020 the section is passage-based, but 'must be true' questions often hide an All/Some/No chain inside the prose, and CLAT 2025 brought back a seating set, so short analytical questions can return at any time.