Question
Statements: No truck is a bus. All bus are
train.  Only a few train are car. Conclusions: I. All bus may be car. II. All truck are train is a possibility. III. All car can be train. In each of the question below are given some statements followed by some conclusions. You have to take the given statements to be true even if they seem to be at variance with commonly known facts. Read all the conclusions and then decide which of the given conclusions logically follows from the given statements, disregarding commonly known facts.ÂSolution
All bus are train (A) + Some train are car (I) → Probable conclusion → All bus may be car (A). Hence conclusion I follows. No truck is a bus (E) + All bus are train (A) → Some trains are not truck (O*) → Probable conclusion → All truck may be train (A). Hence conclusion II follows. Some train are car (I) → Probable conclusion → All car may be train (A). Hence conclusion III follows. Alternate Method -
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