Logical Deduction Questions

• Syllogism – Disjoint classes and a subset Statements: 1) No paper is a pen. 2) No pen is a pencil. 3) All erasers are papers. Conclusions: I) Some papers are erasers. II) No pencil is an eraser. III) No pen is an eraser. IV) All papers are erasers.
• Syllogism – Combining two universal negatives with a particular fact Statements: 1) No man is the sky. 2) No sky is a road. 3) Some men are roads. Conclusions: I) No road is a man. II) No road is the sky. III) Some skies are men. IV) All roads are men.
• Syllogism – Testing consequences of subset and disjointness Statements: 1) All buildings are windows. 2) No toy is a building. 3) Some tigers are toys. Conclusions: I) Some tigers are buildings. II) Some windows are tigers. III) All toys are tigers. IV) Some windows are toys.
• Syllogism – Particular and universal statements together Statements: 1) Some papers are cats. 2) All cats are bats. 3) No bat is a horse. Conclusions: I) Some papers are horses. II) No horse is a cat. III) Some bats are papers. IV) All papers are bats.
• Logical syllogism — test what necessarily follows from “some” statements Statements: • Some tapes are discs. • Some discs are cassettes. • Some cassettes are songs. Conclusions to evaluate: I. Some songs are discs. II. Some cassettes are tapes. III. Some songs are tapes. IV. No song is a disc.
• Syllogism with negative and universal claims — infer only what is necessary Statements: • No table is fruit. • No fruit is window. • All windows are chairs. Conclusions to evaluate: I. No window is table. II. No chair is fruit. III. No chair is table. IV. All chairs are windows.
• Layered category reasoning — track subset chains carefully Statements: • All jungles are buses. • All books are buses. • All fruits are books. Conclusions to evaluate: I. Some fruits are jungles. II. Some buses are books. III. Some buses are jungles. IV. All fruits are buses.
• Letter-ordering (forms a meaningful English word): Given letters with fixed positions — V(1) A(2) R(3) S(4) T(5) E(6) — which index sequence produces a valid word?
• Letter-ordering (forms a meaningful English word): Given letters with fixed positions — A(1) L(2) I(3) R(4) E(5) M(6) C(7) — which index sequence produces a valid word?
• Letter-ordering (forms a meaningful English word): Given letters with fixed positions — T(1) P(2) A(3) F(4) N(5) F(6) I(7) L(8) I(9) — which index sequence produces a valid word?
• Letter-ordering (forms a meaningful English word): Given letters with fixed positions — E(1) M(2) I(3) H(4) T(5) R(6) — which index sequence produces a valid word?
• Letter-ordering (forms a meaningful English word): Given letters with fixed positions — X(1) O(2) M(3) L(4) C(5) P(6) E(7) — which index sequence produces a valid word?
• Letter-ordering (forms a meaningful English word): Given letters with fixed positions — E(1) C(2) O(3) T(4) I(5) H(6) T(7) Y(8) H(9) O(10) N(11) P(12) A(13) — which index sequence produces a valid word?
• Letter-ordering (forms a meaningful English word): Given letters with fixed positions — R(1) T(2) A(3) N(4) U(5) E(6) — which index sequence produces a valid word?
• Logic consistency: Statement: “When it rains, plants get greener.” From the following four atomic statements, select the pair that is logically consistent with the given rule. (i) It rained. (ii) It did not rain. (iii) Plants got greener. (iv) Plants did not get greener.
• Logic consistency: Statement: “When it is not raining, peacocks dance.” Select the pair that is consistent with this rule. (i) Peacocks are dancing. (ii) It is raining. (iii) Peacocks are not dancing. (iv) It is not raining.
• Logic consistency (exclusive alternative implied): Statement: “Madhu either runs or walks.” Select the pair that is most consistent with the intended meaning. (i) Madhu runs. (ii) Madhu walks. (iii) Madhu does not run. (iv) Madhu does not walk.
• Logic consistency: Statement: “She does not get a call when there is a strong network.” Select the pair that does not violate the rule and is jointly consistent. (i) She gets a call. (ii) There is a strong network. (iii) There is no network. (iv) She does not get a call.
• Logic consistency: Statement: “When Baby wears only sari, Crazy goes bungee jumping.” Select the consistent pair. (i) Baby wore sari. (ii) Crazy went bungee jumping. (iii) Baby wore only sari. (iv) Crazy did not go bungee jumping.
• Logic consistency: Statement: “If Raman works the late-night shift, his sister makes coffee.” Select the consistent pair. (i) Raman works the late-night shift. (ii) Raman works the morning shift. (iii) His sister makes coffee. (iv) His sister makes tea.