Argument by Analogy for CLAT: When a Comparison Holds

📑 On this page

⚡ The 20-second answer

An argument by analogy says: X is like Y, Y has property P, so X has P too. It holds only if X shares the feature that gives Y its P. To weaken it, show a relevant difference; to strengthen it, confirm the shared feature. The trap: picking a difference that is true but irrelevant.

🎬 The 30-second story

The ₹10 table fee

“Rent went up. I need ₹10 more per customer.”

☕

Kabir

Kabir's café is busy but barely breaking even.

“Delivery apps add a platform fee and people still order. Add a ₹10 table fee.”

🛵

Aarav

Aarav, full of confidence.

“People pay that fee because food comes to their sofa. What does yours buy?”

🖊️

Zoya

Zoya goes for the reason behind the comparison.

“A chair they already thought was free…”

🪑

Kabir

A real similarity. Just not the one that mattered.

Tara's verdict: Both are food businesses with a fee. But customers accept the app's fee because it buys delivery; the café's buys nothing. An analogy is only as strong as the similarity that causes the result.

How does CLAT word analogy questions?

CLAT never says "evaluate this analogy". It asks sideways, inside a 400-word passage.

Stem you'll see	What it really asks
"the author uses a/an ___ to strengthen his argument" (2020 Q111)	Is the comparison evidence, or just colour?
"strengthens the author's idea of words being like glow-worms…" (2024 Q89)	Decode the image into a plain claim.
"Just as X…, Y will also need to…": explain it (2021 Q125)	"Just as" = analogy. What moves from X to Y?
"…most weakens the argument?" on a comparison	Find a relevant difference.
"…most similar to the author's statement?"	Parallel reasoning: match the skeleton.

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📌 What CLAT actually expects

No jargon, no outside knowledge. Spot a comparison used as evidence, say what it claims, and judge whether the cases match where the conclusion needs.

What is an argument by analogy?

Every analogy has a source we know about (the delivery app) and a target the conclusion is about (the café). It carries a property, the cargo, across: "customers accept the fee".

🧮 The formula

The shape of every argument by analogy

🛵

Source Y has feature F and result P

app: delivery + fee accepted

☕

Target X has feature F too

café: ??? + fee

🎯

So X will have P

customers will accept the fee

X and Y need to be alike only in F, the feature that produces P. The café has the fee but not the extra service.

🗺️ Argument map

Aarav's argument, mapped

Source

Delivery apps charge a platform fee and customers keep ordering.

Claimed similarity

Kabir's café, like the apps, is a food business.

↓

🌉 Hidden assumption (the bridge)

Whatever made customers accept the app's fee is also present at the café.

↓

🎯 Conclusion

Customers will accept a ₹10 table fee at the café.

What each new fact does

−
The app fee pays for delivery; the table fee pays for nothing new.
Weakens · hits the gap — A relevant difference: weakens.
＋
The fee will come with free charging points and Wi-Fi.
Strengthens · hits the gap — Now the fee buys a visible extra: strengthens.
∅
Both the app and the café use orange in their logos.
No effect · hits the premise 2 — True, but irrelevant to fees.

Every strengthener or weakener lands on the bridge.

When does an analogy hold? The four-step test

1
Pair: name the source and the target
Which case do we know about, and which is the conclusion about?
2
Cargo: what is being carried across?
The property claimed for the target. That is the conclusion.
3
Why: what gives the source that property?
Name the feature that produces it. Everyone skips this step.
4
Check: does the target share that feature?
Yes: it holds; confirming it strengthens. No: it breaks; showing the gap weakens.

⚠️ Not every difference is a relevant one

Any two things differ in a hundred ways. A difference weakens only if it touches the why. "The café is smaller": useless. "The café fee buys nothing": the killer.

How do you weaken or strengthen an analogy?

🧩 At a glance

Where options hit an analogy

🔻Relevant difference

The target lacks the feature behind the result. The usual answer.

🔻Source never had P

App orders actually fell after the fee.

🔻P had another cause

Orders held up thanks to a festival discount.

🔺Confirm the key similarity

The café's fee will also buy a visible extra.

🔬 Option autopsy

Option autopsy: the pause button

Gyms let members freeze membership while travelling, and they usually return. So a music app should let users pause subscriptions; they'll return too. Which most weakens this?

A Gym members freeze because they can't use the gym while away; music streams anywhere, so pausers mostly want to stop paying. Tag it

✅ Correct

Hits the why: a gym pause ends when the trip ends; a "stop paying" pause doesn't.

B Most gyms are open from 6 am to 10 pm. Tag it

🙈 True but irrelevant

A difference with no link to returning.

C No feature can ever make streaming users loyal. Tag it

📢 Too strong / extreme

"Ever" is the red flag.

D Users who paused a rival podcast app renewed at high rates. Tag it

🔄 Opposite direction

Another success story: strengthens.

✅ Correct🙈 True but irrelevant📢 Too strong / extreme🔄 Opposite direction

Guess the trap behind each option, then tap to check. Wrong options fail in a handful of predictable ways.

Is a legal precedent just an analogy?

Yes. When a Legal Reasoning passage cites an earlier case, ask whether your facts match it in the way the rule cares about. Courts "distinguish" a precedent by naming a relevant difference.

Analogy, or just a figure of speech?

Both past questions below turn on this. Some comparisons push a conclusion (arguments); others paint a picture (description). Test the first; decode the second.

⚔️ Side by side

Figure of speech vs argument by analogy

🎨Metaphor or simile

describes

•"Words are like glow-worms."

⚖️Argument by analogy

proves (or tries to)

•"Prohibition failed there, so it will fail here."

Test	Metaphor or simile	Argument by analogy
Your question	What does it mean in plain words?	Are the two cases alike where it matters?
Can it be weak?	Only unclear, never invalid	Yes, through a relevant difference

A conclusion riding on it makes it an argument.

🧭 Decision flow

What is this comparison doing?

❓ Does the author draw a conclusion about one case from what happened in another?

No →

A figure of speech. Decode it into a literal claim.

Yes ↓

❓ Does the target share the feature that produced the result in the source?

Yes →

Holds. Confirming that feature strengthens.

No →

Breaks. That difference is your weakener.

Can you test these comparisons? Worked examples

✍️ Worked example Warm-up ⏱ 30 sec

The no-revision week

Aarav: "Football teams rest players the week before a final, and rested teams play better. So I'll do zero revision the week before CLAT." Does it hold?

1
Pair: footballers before a final → Aarav before CLAT.
2
Cargo: rest before the big day improves performance.
3
Why: tired muscles recover; the skills are already trained.
4
Check: CLAT is a reasoning test. Zero practice cures no fatigue and lets speed rust. The feature that makes rest work is missing.

Answer: Weak analogy. A lighter final week might transfer; total rest doesn't follow.

⚡ The exam-hall shortcut

"It works for them because ___." Blank doesn't fit the target? It breaks.

✍️ Worked example CLAT level ⏱ 45 sec

The pedestrian market

Cities that made their busiest market street pedestrian-only saw shop sales rise. So Rampur should do the same to Old Market Road. Which most strengthens this? (A) Rampur can afford new benches. (B) In those cities, as in Rampur, most shoppers came on foot or by bus. (C) Pedestrian streets photograph well. (D) Some Rampur shopkeepers oppose the plan.

1
Pair: other cities' streets → Old Market Road.
2
Cargo: pedestrianising raises sales.
3
Why: few shoppers came by car, so banning cars lost none.
4
Check: B confirms Rampur shares that feature. A and C don't touch why sales rose; D is opinion.

Answer: B: it confirms the relevant similarity.

⚡ The exam-hall shortcut

Strengthener = same why in the target.

✍️ Worked example Passage ⏱ 75 sec

Second-hand distraction (passage-length)

"Two decades ago, people smoked in buses, offices and cinema halls, and non-smokers had to breathe it in. We did not leave that to personal choice; we banned smoking in public places because one person's habit harmed everyone around them. A student scrolling reels in the second row doesn't just lose her own lesson; her screen pulls the eyes of everyone behind her. If the smoker's freedom ends where his neighbour's lungs begin, a student's freedom to scroll ends where her classmate's attention begins. Phones should be banned from classrooms."
Which, if true, most weakens the analogy? (A) Smoking among young Indians has fallen. (B) Second-hand smoke harms everyone in the room, while a screen distracts mainly those who choose to look at it. (C) Many schools already ban phones. (D) Some students smoke secretly at school.

1
Pair: smoking in public → phones in class.
2
Cargo: a ban is justified.
3
Why: the passage says it: the habit harmed everyone around, unavoidably.
4
Check: B says the classroom harm is largely avoidable. A, C and D don't touch the comparison.

Answer: B: a relevant difference in the feature that justified the smoking ban.

⚡ The exam-hall shortcut

The author handed you the why. The weakener denies it for the target.

How has CLAT asked argument by analogy?

📝 Asked in CLAT 2020 · Q111 Spot the device

In 1985, Mikhail Gorbachev, launched an ill-fated anti-alcohol campaign in the then Soviet Union. The anti-alcohol campaign had some beneficial public health consequences: Crime fell and life expectancy rose. But the campaign was a political and economic disaster. Gorbachev forgot that the addiction of the state to alcohol revenue was even more incurable than the addiction of some citizens to alcohol itself.… As the lockdown eased in India… we were reminded of how difficult an issue alcohol is to rationally discuss in India… And certainly, moralism or puritanism on alcohol cannot be the basis of state policy. [Excerpt from an opinion by Bhanu Pratap Mehta, The Indian Express, May 7, 2020]

In the above passage, the author uses a/an __________ to strengthen his argument.

AMetaphor

BAnalogy

CPersonification

DNone of the above

Reveal answer + reasoning

Answer: B

The source is the Soviet 1985 anti-alcohol campaign; the target is India's alcohol policy after the lockdown; the cargo: moralistic prohibition backfires on the state. He also likens the state's hunger for alcohol revenue to a drinker's addiction. Both comparisons are offered as reasons, which is what "to strengthen his argument" asks. A comparison used as evidence is an analogy. Answer B. Time: 20 seconds.

Why the others fail

A — "Addiction of the state" is figurative, but a metaphor only describes. Here two situations are set side by side to build a case.
C — The state's "addiction" is a passing phrase; it doesn't carry the argument from the Soviet case to India.
D — B fits, so "none" fails.

📝 Asked in CLAT 2024 · Q89 Decode the comparison

Words remain an enigma, their presence within human sphere is a unique mystery. Words can provoke smiles and elicit joy. They are like glow-worms, momentarily dispelling the surrounding darkness and act as life-saving rafts amid the tumultuous ocean waves. Words grant us the ability to explore the universe, and "to see a world in a grain of sand." as William Blake noted.…

Which of the following strengthens the author's idea of words being "like glow-worms momentarily dispelling the surrounding darkness"?

AWords help in understanding reality.

BWords illuminate the mind of the reader.

CWords help in escaping reality.

DWords cast darkness in the mind of the reader.

Reveal answer + reasoning

Answer: A

A simile, so decode it first. A glow-worm is a small light showing a little of what is around you, for a moment. Literal claim: words help us make sense of the world around us. The next sentence agrees: words let us "explore the universe". A says that plainly. Answer A (official key). Time: 30 seconds.

Why the others fail

B — The closest rival. "Illuminate" just repeats the light image and moves the darkness into the reader's mind; the passage says surrounding darkness, the world around us.
C — Opposite: a light shows your surroundings; it doesn't take you away from them.
D — Reverses the image.

Which analogy myths cost students marks?

💥 Myth vs fact

Myth vs fact: analogies

🙅 Myth

If the two things are different, the analogy is weak.

Tap to bust it →

✅ Fact

All pairs differ. Only a difference linked to why the result happened weakens.

🙅 Myth

More similarities make a stronger analogy.

Tap to bust it →

✅ Fact

One causal similarity beats ten surface ones.

🙅 Myth

Metaphor, simile, analogy: CLAT treats them alike.

Tap to bust it →

✅ Fact

2020 Q111 turned on the difference: evidence is analogy, a picture is a figure of speech.

Quick quiz: does the comparison hold?

🎯 Quick quiz

Five analogies, one test

0 / 5

A hill-town council argues: "Last year a nearby tourist town banned plastic bags, and within months its streets were visibly cleaner. Our streets are choked with plastic too, and our tourists come from the same cities. So if we ban plastic bags, our streets will be just as clean by next season." The vote is next week, and the local traders' association has asked for a one-month delay.

Q1. Which, if true, most weakens the council's argument?

Q2. "Running a country on borrowed money is like paying rent with a credit card: it feels fine until the bill arrives." What is the writer doing?

An online chess platform added a "report cheater" button, and cheating complaints halved within three months. A quiz-app founder argues that the same button will cut cheating in her app's live quizzes too. Both platforms are used mostly by school and college students, and both run timed contests. She calls the chess result clear proof that the idea works anywhere.

Q3. Which most strengthens the founder's argument?

"Pilots' pre-flight checklists cut errors from forgotten steps. So surgeons should use one before every operation."

Q4. Which difference is IRRELEVANT to whether the analogy holds?

A canteen's feedback app lifted its food rating from 3.1 to 4.2 stars in a term. The warden wants the hostel mess to adopt it.

Q5. Which fact would make this analogy strongest?

🎯 Argument by analogy in a nutshell

An analogy argues: X is like Y, Y has P, so X has P.
Run Pair → Cargo → Why → Check.
It holds only if X shares the feature that produced P in Y.
Weaken with a relevant difference; strengthen by confirming the shared feature.
Evidence = analogy; imagery = metaphor or simile.

📎 Cheat sheet

"just as", "like", "similarly" → analogy → name source, target, cargo.
"most weakens" + comparison → relevant difference at the why.
"most strengthens" + comparison → confirm the shared cause.
"the author uses a/an ___" → evidence or picture?
"what does the author mean by 'like…'" → decode into a literal claim.
"most similar to" → parallel reasoning → match the skeleton.

Frequently asked questions

What is argument by analogy in logical reasoning?

It argues that one case will have a property because a similar case has it: X is like Y, Y has P, so X has P. It is never certain. Its strength depends on whether X shares the feature that gives Y its property, not on overall likeness.

How do you weaken an argument by analogy in CLAT?

Find a relevant difference: the target lacks the feature that produced the result in the source. Or show the source never had the result, or got it another way. A difference unrelated to why the result happened weakens nothing.

What is the difference between an analogy and a metaphor?

A metaphor or simile describes vividly, like calling words glow-worms. An analogy uses a comparison as evidence, like arguing a policy will fail here because it failed elsewhere. CLAT 2020 Q111 rewarded seeing that the author's comparison was doing argumentative work.

How often does CLAT ask about analogies?

Directly, rarely: 2020 Q111 and 2024 Q89 are the clearest cases. Indirectly, all the time. Opinion passages lean on comparisons with other countries, past policies or earlier cases, and strengthen, weaken and meaning questions test whether you can judge them.