Question
Statements: Some dogs are lions. All
lions are tigers. All lions are leopards. No leopard is a monkey. Conclusions: Â Â Â Â Â Â I. All leopards may be tigers. II. All tigers may be dogs. III. Some lions are not monkeys. IV. Some dogs are tigers. In each of the questions below are given four statements followed by four conclusions numbered I, II and III and IV. 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 given conclusions logically follows from the given statements disregarding commonly known facts.Solution
 All lions are tigers (A) ⇒ Conversion ⇒ Some tigers are lions(I) + All lions are leopards (A) ⇒ Some tigers are leopards (I) ⇒ Conversion ⇒ Some leopards are tigers (I) ⇒Probable conclusion⇒ All leopards may be tigers. Hence Ist follows. Some dogs are lions (I) + All lions are tigers (A) ⇒ Some dogs are tigers (I) ⇒ Conversion ⇒ Some tigers are dogs ⇒probable conclusion ⇒All tigers may be dogs(A). Hence IInd follows. All lions are leopards (A) + No leopard is a monkey(E) ⇒ No lion is a monkey (E) ⇒I.I⇒ Some lions are not monkeys (O). Hence IIIrd also follows. Some dogs are lions (I) + All lions are tigers (A) ⇒ Some dogs are tigers (I). Hence IVth also follows. 
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