SSC CGL Reasoning · Statement-Based Reasoning

Statement and Assumptions

A statement, often a claim or a piece of advice, and two or three assumptions: an assumption is implicit if the statement takes it for granted without saying it.

All Statement-Based Reasoning notes

Why this matters

Eighteen questions in the bank, all from the 2025 shifts, and 17 of them MODERATE, the hardest page of the chapter. Most statements are long and written like a news report, so the skill is finding the one belief each claim depends on.

Concept 1 of 2: What a claim takes for granted

An assumption is the unstated belief a statement rests on. The test is simple: imagine the assumption is false. If the statement then stops making sense, the assumption was implicit. If the statement still stands, it was not.

Definition

Implicit: the statement needs it. Advice to do X so that Y happens assumes X can bring about Y.
Not implicit: it goes beyond the statement, adds a new idea, or uses a stronger word (all, only, most important) than the statement needs.
A fact the statement already says outright is part of what it takes for granted; these questions count it as implicit.
"May", "can" and "could" in the statement do not make anything certain, so an assumption that something "will" happen is not implicit.
Fast route: for each assumption, ask "If this were false, would the statement still make sense?" Answer yes means not implicit.

Worked example

Statement: "Carry an umbrella; it may rain this evening." Assumptions: I. An umbrella protects from rain. II. It will certainly rain this evening. Which are implicit?

Practice this conceptself-check · 4 quick reps

The same idea in a real exam question:

SSC CGL · 2025 · Tier I, 12 Sep 2025, Shift 2 · Q8Moderate

Example 1 · Statement-Based Reasoning · Statement and Assumptions

Instruction: Identify the assumptions that must hold for the statement to be valid, then choose the correct option. Statement: The discovery of exoplanets in habitable zones around distant stars has provided exciting prospects for the search for extraterrestrial life, yet the vast distances and technological limitations pose significant obstacles to direct exploration. Assumptions: I. Exoplanets located in habitable zones may have the potential to support life. II. Current technology is insufficient to directly explore exoplanets in habitable zones. III. Direct exploration of exoplanets will be unnecessary if we detect signs of life remotely.

Accepting an assumption with a stronger word

If a statement lists biodiversity loss as one effect of deforestation, "biodiversity loss is the most significant effect" is not implicit. Words like most, only and all usually claim more than the statement needs.

Accepting an assumption that is merely true

An assumption can be a true fact and still not be implicit. Ask whether the statement depends on it, not whether it is correct.

Drill 13 more on what a claim takes for granted

Concept 2 of 2: Assumptions behind a decision or a notice

When an authority makes a decision or puts up a notice, it acts on a belief about what the step will achieve. That belief is implicit. Beliefs about other motives, rivals or side effects are not, unless the statement mentions them.

Definition

Implicit: the decision will help with the aim it is made for, and the aim matters to the people making it.
Not implicit: a hidden motive, a comparison with others, or a claim that the step is the only one possible.
Notices and bans: a ban assumes the banned thing causes some harm in that place.
Fast route: name the aim of the decision in a few words. An assumption that the step serves that aim is implicit; anything else needs support from the statement.

Worked example

Statement: The city has opened a new flyover to ease traffic on the main road. Assumptions: I. The flyover will reduce traffic on the main road. II. The city has no other roads. Which are implicit?

Practice this conceptself-check · 4 quick reps

The same idea in a real exam question:

SSC CGL · 2025 · Tier I, 18 Sep 2025, Shift 2 · Q4Easy

Example 2 · Statement-Based Reasoning · Statement and Assumptions

Consider the following statement and choose the option that follows. Statement: The railway authority decided to reduce ticket prices on long-distance trains. Assumptions: I. Lower prices will attract more passengers. II. The authority wants to compete with airlines.

Inventing a motive

Closing a road for repairs assumes the repairs are needed. It does not assume the town wants more people to take the bus unless the statement says so.

Reading a request as proof of a shortage

Asking students to carry water does not assume the school has none. A decision assumes its aim, not the worst possible reason for it.

Drill 3 more on assumptions behind a decision or a notice

Summary — formulas & gotchas at a glance

A revision cheat-sheet for the formulas and gotchas above. Click any concept name to jump back to its full explanation.

Watch out for (4)

Accepting an assumption with a stronger word
→ What a claim takes for granted
Accepting an assumption that is merely true
→ What a claim takes for granted
Inventing a motive
→ Assumptions behind a decision or a notice
Reading a request as proof of a shortage
→ Assumptions behind a decision or a notice

Test yourself on Statement-Based Reasoning

20 past SSC CGL questions from this chapter, timed at 12 minutes and marked the way the exam marks it. You see your score and every answer the moment you finish. Free to start.

Take the Statement-Based Reasoning chapter test Drill all 18 questions