- Only conclusion II follows
- Only conclusion I follows
- Neither I nor II follows
- Both I and II follow
- Either I or II follows
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Answer: B official key
6 questions · CET 2025–2026 · Easy 3 · Medium 3 · Hard 0. Newest paper first. Full papers
Answer: B official key
Answer: A official key
Answer: A official key
Approach: Statement–conclusion: accept what follows directly; reject extreme or unsupported claims.
Solution:
Statement: the old order changed, making way for the new.
I: 'Change is the law of nature' — the statement is a classic expression of exactly this idea ⇒ follows.
II: 'Discard old ideas because they are old' — the statement says old was replaced, not that age alone is a reason to discard. Extreme ⇒ does not follow.
Why the other options are wrong:
B/E: II is an extreme prescription. C: I and II are not complementary. D: I clearly follows.
Answer: A
Answer: E
Approach: Must-be-true check — a conclusion is valid only if the facts force it.
Solution: Facts: 4 vehicles, 2 are red, 1 is a minivan.
I. Red minivan — the minivan may or may not be one of the red ones → not certain.
II. 3 cars — the other vehicles could be bikes, trucks etc. → not certain.
III. Favourite colour red — nothing is said about preferences → not certain.
None of the three must be true.
Why the other options are wrong: A, B, C, D each claim at least one statement is certain, but every statement is only possible, not forced.
Cetking shortcut: 'Must be true' ≠ 'could be true' — if you can imagine one case where it fails, reject it.
Answer: E
A statement/ group of statements is given followed by some conclusions. Without resolving anything yourself, choose the conclusion which logically follows from the given statement.
Statement: Many business offices are located in buildings having two to eight floors. If a building has more than three floors, it has a lift.
Conclusions:
(a) All floors may be reached by lifts
(b) Only floors above the third floor have lifts
(c) Seventh floors have lifts.
(d) Second floors do not have lifts
Answer: C
Approach: Statement–Conclusion: accept only what must be true from the given facts.
Solution: Facts: buildings have 2 to 8 floors; any building with more than three floors has a lift.
(a) 'All floors may be reached by lifts' – a 2- or 3-floor building need not have a lift, so this does not follow.
(b) 'Only floors above the third have lifts' – a lift in a 5-floor building serves all its floors; not stated.
(c) 'Seventh floors have lifts' – a building with a 7th floor has more than three floors, so it must have a lift – follows.
(d) 'Second floors do not have lifts' – a second floor in an 8-floor building has a lift; does not follow.
Why the other options are wrong:
A, B – (a) and (b) go beyond the facts.
D, E – (d) is false for tall buildings.
Cetking shortcut: Pick the conclusion that needs only the 'more than three floors → lift' rule.
Answer: C
For given question, a statement is followed by two conclusions. Point out the correct conclusion:
(a) If only conclusion I is true
(b) If only conclusion II is true
(c) If both the conclusions are true
(d) If neither of the conclusions is true
(e) If either conclusion I or conclusion II is true
Statement: Douglas is my cousin. A cousin may be a sister's son, uncle's son or brother's son.
Conclusions:
I. Douglas is my sister's son.
II. Douglas is my uncle's son.
Answer: D
Approach: Statement–Conclusion: a 'may be' list of possibilities does not prove any one of them.
Solution: The statement says a cousin may be a sister's son, uncle's son or brother's son – several possibilities.
Conclusion I (sister's son) – only one possibility, not certain → does not follow.
Conclusion II (uncle's son) – also only one possibility → does not follow.
Since there are three possibilities, I and II do not cover all cases, so 'either I or II' also fails. Neither follows → option (d).
Why the other options are wrong:
(a), (b), (c) – neither conclusion is definite.
(e) – 'either–or' needs I and II to be the only two possibilities; a third (brother's son) exists.
Cetking shortcut: 'May be' + a list of 3 or more choices → usually 'neither follows'.
Answer: D
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